Cocos Island
National Park

THE TREASURE IS THE ISLAND
Coordinates: 05º30’57” latitude north,
87º03’40” longitude west “The
most beautiful island of the world”, these were
Jacques Cousteau’s words when he visited Coco’s
Island. Perhaps a simple description, but before the
beauty of the place, words seem not enough. Located
in the Pacific Ocean, 532 kilometers to the South
West of White Cape (Cabo Blanco), Coco’s Island
rises like pearl in the middle of the ocean. Possessing
a beauty admired by all, today it is of world importance.
A LITTLE BIT OF HISTORY
The first dive in this island to be recorded was in
the year of 1905, after the vapor “S.S. Turrialba”,
of Costa Rican flag, left the port of Puntarenas hauling
a barge for the diving operations. The final purpose
of this trip was, according to the book “Cocos
Island”, by Costa Rican author, Christopher
Weston, “increase the knowledge of the submarine
world, and that is sure, why not, take a closer look
in search of any traces of the already famous Lima
treasure”. That is how a group of divers in
diving suits and other persons arrived, who should
work doing cartographic labors on the land portion
of the island. In 1925, according to Weston’s
book, the submarine world of the island received the
visit of William Beebe, who after spending many days,
told impressive stories of his adventure.
Among the other personalities that
followed was Hans Hass, who in 1954, aboard his famous
ship Xafira and in the company of his daring wife
Lotte Hass, came to these waters, describing the place
as “simply incredible and amazing”. Hass
made dives in several parts of the island and perhaps
the ones which most impressed him were those around
Nuez Island (today known as Manuelita) and for which
he left a prediction which was to become true: “he
who manages to dive on the North part of Nuez Island,
will discover marvelous and surprising things”.
By the end of the 50’s and beginning of the
60’s, the attraction of the island was even
greater for diving and fishing amateurs, than for
treasure hunters. Thus, trips began to be organized
for lovers of fishing and mountaineering.
In 1976 Phillippe Cousteau visited
these latitudes, son of French oceanographer Jacques
Cousteau. He alighted with his aquaplane PBY Catalina
Calypso II, the same that two years later led him
to his death. Up to that moment, visits to the island
had a certain hue of research-exploration, but in
the 80’s this dynamic began to change, when
the first formal attempts to bring tourist expeditions.
In 1980 a schooner by the name of Victoria offered
charters to Cocos, travels which were mainly enjoyed
by European tourists, to go diving. When the ships
Okeanos, Undersea Hunter, and Sea Hunter began operations,
the access was to the island as diving spot increased,
incorporating other objectives, such as scientific
and photographic exploration.
NATURAL LABORATORY
In only 24 km2, Coco’s Island has a series of
climatological and ecological conditions that grant
it immense scientific and geopolitical importance
for Costa Rica. Constituted as National Park in 1978
and as Conservation Area later, from that moment on,
the island would begin to get credit with different
international titles that reinforce its significance.
On December 4 of 1997, the United
Nations Organization for Education, Science and Culture,
UNESCO, declared it as Natural Heritage for Humanity
in 1998 was distinguished as Marshland of International
Importance under the Ramsar International Convention.
Coco’s Island is an oceanic territory having
a unique and exceptional biodiversity, with organisms
of diverse origin and high endemism, making it a natural
laboratory, where species may be researched and the
climate monitored.
A RADIOGRAPHY
With an average annual precipitation of 7000 mm, Cocos
(as it appears in some maps), has a humid tropical
climate and average temperature of 27º C. For
these characteristics, the dry season is practically
imperceptible. During the months of January to March,
September and October, there is a decrease in rainfall,
for which it is considered to be the dry season. Nevertheless,
in some occasions rains can be extreme and present
throughout the year. Its topography is irregular and
abrupt, with the presence of cliffs, rivers, creeks
and waterfalls. Around the island there is a great
number of submarine caves and inside it, there is
a maximum point of elevation, Cerro Iglesias, with
an altitude of 575 o.s.l.
Some years ago
According to Christopher Weston, author of the book
Cocos Island and who is knowledgeable of this territory,
there exist diverse historical records. One of them
dates back to 1526 and is testimony of the first documented
arrival, the visitor was the Spanish navigator Juan
Cabezas. Thirty years later, on the planisphere of
Nicolás Deslines the island was present with
its current name, but it was not until August 21st
of 1869 that it became a part of the Costa Rican territory.
This was achieved thanks to the President of the Republic,
Jesús Jiménez, who commissioned Lieutenant
Rafael Oreamuno to raise high our three-colored flag.
Notwithstanding, it was in 1832 when
Costa Ricans living then had the first contact with
the island, due to an expedition from Chileans who
had lost their way and the Government sent a ship
to rescue them. It is even affirmed that thanks to
this action, Costa Rica won rights over the island,
and it’s difficult to imagine how those in charge
of the rescue got there, and how long it took them.
Already being a part of Costa Rican territory, in
1874 the General of the Division and President of
the Republic, Tomás Guardia, considered using
the island as a prison. Operational costs were so
high that the government could not afford them, so
the decree was suspended in1882.
CURIOUS VISITORS
Notes seem to suggest that already in the seventeenth
century, this territory received very particular visitors.
Pirates and corsairs found in the island a place to
rest and to supply themselves with water, wood and
fish, which allowed them to feed themselves and recharge
their ships. The greatest part of these pirates brought
with them not only the need for shelter but also for
their treasures. Thus, the pirate Edward Davis, of
whom it is believed he looted a treasure in León,
Nicaragua; Benito Bonito and the captain William Thompson,
who are suspected to have stolen a treasure in Lima,
were around these coordinates.
Legend tells that these treasures
remain hidden in the island, so for many treasure
hunters, it became a mandatory “expedition”,
to such extent that it has been called Treasure Island.
Even the German Augusto Gissler, named Governor of
the Island in 1897 and who tried to establish 50 German
families there, so that they would work the land,
tried during 17 years to find some of these treasures,
unsuccessfully. The ecological impact of this search
was harmful, so, as it was commented by Fernando,
currently only research permits are granted, given
that the island is a great laboratory.
WHAT TO DO?
Talking about Coco’s Island is necessarily referring
to a magical destination for lovers of diving, who
will find a rich marine fauna and flora. Getting to
the island is not an easy or economical task. The
trip may last 30 to 36 hours with a calm sea, so in
most cases what people should take is some tourist
operation, since reaching by their own means is difficult.
Ships may only be anchored in two bays: Wafer &
Chatham. This is due to the fact that in the others
there is an important presence of coral reefs and
also the conditions of the sea, could make it difficult
for ships to come in.
Anchoring rights ranges from $25
to $150, depending of the size of the ship, and admission
rights are $25. For its conditions and characteristics,
the island does not offer visitors any place to stay,
or any conveniences for buying or preparing food.
But on the park’s facilities you may find showers
and water closets. The above means that by necessity,
the easiest way to arrive and stay in the coasts of
the island, will be with companies dedicated to Tourism
on the area. Diving is one of the main attractions,
but within the island it’s possible to follow
the trails, visit the waterfalls and viewpoints that
will bring a delightful fresh sensation to your eyes.
Its climate, the sea, biodiversity, the coasts. Everything
together makes of Coco’s Island an excellent
get away for nationals and foreigners. Even if the
trip may not be performed every month (because of
the distance and cost), it could be a nice target
to reach, visiting it at least once in a lifetime.
The real treasure of the Island is not hidden, it
is before the eyes of a few fortunate ones that reach
there.
TO THE WATER
But, what is offered by the island that makes it one
of the most searched for destinations in the world
for diving? It is considered that diving in this island
is not recommended for those with little experience.
But the beauty and variety of marine biodiversity,
is an irresistible hook no one can escape. One of
the requirements you should comply with if wanting
to dive in the island, is having an “Open Water
Diver” and, preferably, the “Advanced
Open Water Diver” license, since it means risky
diving, with changing currents that may displace persons.
Even if the companies performing
tours to the island will provide the tanks and weights,
one must bring the basic personal equipment: regulator,
buoyancy compensator device (B.C.D., for its acronym),
mask, full wetsuit and fins. As to the diving systems,
you may use Nitrox (mixture of nitrogen ad oxygen),
knowing that you will enjoy more time of permanence
under water, sacrificing a little of the depth of
the immersion. If what you prefer is depth diving,
the best option is the multilevel, using compressed
air. In fact, multilevel diving is the most recommended
by Nicola Ghersinich, Dive Master and Instructor of
ample experience in Cocos Island. This method requires
advanced knowledge and it increases the time of the
immersion by one hour or more, by step management
of the depths visited, up to 140 feet, and the area
covered. The only diving point where multilevel is
not practiced is in Silverado, due to its topographic
profile.
BY NIGHT AND BY DAY
Diving may be by day or night and depending on the
type of fauna and flora you’ll find in these
two environments is very different. For example, depending
on the behavior of predators: during nocturnal diving
it’s very common to find white-finned sharks
hunting and great jurels, while other animals rest.
The island has so much to offer, that there are great
possibilities of having good visibility, even though
the high level of annual precipitation. If the sun’s
force is greater, the visibility range may reach 100
feet, but if it is overcast, it will decrease to 50-70
feet. Even if any time is good to visit the island,
experts recommend summers, from January to March seams
the best season to fully enjoy the splendor of the
island and its waters.
If we listen to the advice and experience
of Mr. Christopher, he recommends Wafer Bay as one
of his favorite points for diving. Some 120 feet deep,
you’ll find the sunken ship Resolution, so you
can not only know the place but also go over its history,
as it’s the same ship that transported the Chileans
that Costa Rica meant to rescue in 1832. The Island
Manuelita, is another good place to dive, possessing
a beautiful coral garden. Next to Australia, Tahití
and Borneo, the island captivates those sailing its
waters in search of adventures. Those who appreciate
the essence of adventure will find in this place a
great natural masterpiece.
DIVING IN THE ISLAND
Types of diving:
Multilevel -except in Silverado-, Nocturnal –especially
in Manuelita Island - and Nitrox in most points.
Outstanding points: silver shark only on Silverado,
thus its name; corals in Manuelita Island; hammerhead
sharks in Dos Amigos, Manuelita, Roca Sucia and Alcyone.
Maximum depth: 130-140 feet.
Temperature: between 24ºC and 28ºC and in
the bottom and an average of 28ºC at the surface.
Recommended suit: full wetsuit, neoprene, 3 mm minimum
and gloves.
Visibility: minimum of 60 feet, in summer is the best,
up to 100 feet. There have been temporary difficulties
during the phenomena related to El Niño.
WORLD OF CONTRASTS
Cocos Island is oceanic, which makes it unique and
rare in the world. In the beginning, it was completely
lifeless and colonization with organisms was slow
because it’ so far from other lands. It is this
same condition which makes the Island to have many
endemic species due to “evolution in isolated
territories and the absence of external genetic fluxes,
especially continental”, says Michel Montoya
on his report “Cocos Island, an introduction
to its natural history”. The Island stands as
the converging point for migratory pelagic marine
species, that arrive to its coasts to feed or reproduce
themselves, so that its existence is highly important
for maintaining the area’s resources.
Another characteristic is that being
located on the Intertropical Convergence Area, it’s
the “only oceanic island of pluvial character
on the Tropical Pacific of the East, with very high
annual precipitations, which constitutes an exceptional
characteristic in the regional context”, pointed
out Montoya. Its flora and fauna are a mixture of
biological elements of different origins, which are
under the influence of a system of marine currents,
a particular geological history and isolated from
the American influence.
FROM OUTSIDE
Cocos Island’s fauna is very diverse and has
a high degree of endemism. Nevertheless, as refers
to land mammals, that is not the rule. Cocos counts
with five species of mammals, all of them have been
brought from outside, species introduced: feral pig
or wild boar (Sus scrofa), white-tailed deer (Odocoileus
virgianianus), rat (Ratus ratus), goat (Capra hircus)
and domestic cat (Felis catus). As indicated by Fernando
Quirós, Director of the Cocos Island Marine
Conservation Area, ACMIC, currently they are developing
actions to create an erradication program of these
animals, since their presence has caused damage to
the habitat and autoctonous species.
The avifauna has had better luck,
since its presence in the Island reaches 100 species.
Of these, 13 are residentes, of which three are endemic:
Cocos flycatcher (Nesotriccus ridgwayi), Cocos cuckoo
(Coccyzus ferrugineus) and Cocos finch (Pinarolozias
inornata). The latter belongs to the group of Darwin’s
finches, who used them to propose his theory of evolution.
The white tern also usually visits these lands, in
fact, it’s almost its only nesting place in
the Oriental Pacific.
COLD BLOOD
Cold-blooded animals are perhaps the most scarce of
the Island. Only two land species: the anolis lizard
(Norops townsendii) and the geko (Sphaerodactylus
pacificus), both endemic. In its waters you may find
the olive ridley turtle of the Pacific, the green
and the hawksbill. Diversity is high. Crustaceans
are added to the list, just as invertebrates, of which
over 800 species have been recorded, with an average
endemism of 14%. One of the funniest cases is a scorpion,
which not only is not charcteristic of Cocos, but
is very old, with similar ones in Africa. And in the
waters there is enough to chose from. Endemic fresh
water fish: catfish (ancistrus chagresi), a great
lake trout and a halfmoon angelfish. At the sea the
bottle-necked dolphin, the fake orca, hump-back whale
and sperm whales. Not to forgetting the man rays and
27 species of sharks, predominating the white-fins,
the blue, whale shark and the hammerhead. To this
submarine show window are added 32 coral species (9
deep sea).
GREEN, VERY GREEN
The Island has a dense green forest, since annual
precipitations are very high ( 5 000 to 7 000 milimeters).
Cocos flora corresponds to a dispersion process, “facilitated
by birds, winds, marine currents and floating materials”,
affirms Montoya. Notwithstanding, there is not a lot
of variety. Accounted for are 235 species of plants
with flowers and seeds, to which are added 74 species
of ferns. A higher number of species has been found
for mushrooms, counting some 85 but it’s believed
that at least 50% has yet to be inventoried. Within
this choice of flora, three endemic species are noteworthy:
el palo de hierro (Sacoglottis holdriedgei), the guarumo
(cecropia spp)and the coconut palm.
In general, the Island’s vegetation
corresponds to a tropical rainforest, litoral areas
being identifiable at altitudes lower than 50 meters,
growing on cliffs and the low parts of the bays. On
the other hand, there is the vegetation of the mountainous
area, which is the one of highest coverture and is
present on altitudes higher than 100 meters. Mosses,
lichens and bromeliads, are the other jewels forming
this great treasure on Cocos Island. Its territory
is barely 24 km2 , this natural treasure has allowed
Cocos to become a study room without limits made of
concrete, to better understand climatological and
oceanographic phenomena, generating information for
Costa Rica and the world.
COCOS ISLAND BIODIVERSITY INVENTORY: HERE ONLY NUMBERS
ARE SHOWN, BUT IT IS LIFE
1.300, marine and land animal species.
228 mammal (10 introduced land, and five marine).
600 marine moluscs.
over 260 marine fish species (27 endemic).
32 of corals.
235 plant species (58 plant species and 17 of endemic
ferns).
362 species of insects (64 endemic).
85 of mushrooms.
2 species of reptiles (both endemic).
3 species of spiders.
100 species of birds (3 endemic).
57 species of crustaceans.
… and the list goes on.
SOME RECOMMENDATIONS
If you wish to visit Coco’s Island, it’s
good that you know some of the established regulations,
so that the presence of tourists does not affect the
territory:
Each person is responsible of the
waste generated. For this reason, please be sure to
take it with you when you leave the Island.
Camping is not allowed.
Diving may not be done in groups bigger than 10 persons
and should be commanded by a Dive Master.
Not allowed molesting land or marine fauna.
Flora may not be extracted.
* Fuente: Elvira Sancho, Significado y protección
de Isla del Coco, Revista Ambientico Nº 88, UNA,
enero del 2001; y FAICO.
**
Information courtesy of Eco Sport Magazine
Isla
del Coco Map
The Costa Rica National Park
System protects more than 25 % of Costa Rica


