













07:00 AM Pickup in the lobby of your Cancun hotel.
08:00 AM Pickup in the lobby of your Playa del Carmen hotel.
07:00 AM Pickup in the lobby of your Riviera Maya hotel.
09:30 AM Arrival to Sian Ka'an reserve, where an experienced biologist will give a brief explanation about the biosphere reserve. Board the boats and the adventure begins. The boats travel through the wetlands of Muyil to Xlapak an archeological site located in the reserve. In Xlapak area you can swim in a fresh water channel running through the mangroves and the savanna. Your guide will identify the different types of vegetation and birds. Soft drinks and snacks are provided.
12:00 PM Back to Muyil and you will hike on an old Mayan trail through the jungle with an explanation of the plants and animals in the area. Finally the hike will terminate at a Maya archeological site.
01:30 PM Travel to Cenote "Escondido" (The Hidden Cenote) where snorkeling and swimming are a must.
03:00 PM Lunch in Ana y Jose Restaurant in Tulum (or a similar restaurant.) The meal includes a main dish (chicken, beef or fish, or vegetarian), and soft drinks.
04:30 PM Depart and return to Tulum, Playa del Carmen and Cancun.
06:00 PM Arrival to Cancun.
Visit the most important Biosphere Reserve in Mexico: "Sian Ka'an" Cross the unspoiled
wetlands by boat and see how the ecosystems change. You will encounter some of the
more interesting animals and plants of the Maya Jungle.
Then enjoy a refreshing swim
in a cenote and snorkeling in an underground river.
Things to bring:
This Expedition Operates on Tuesday and Thursday only.
Price:
Sian Ka'an WILDERNESS
ADVENTURE -
Sian Ka'an WILDERNESS ADVENTURE -




Sian Ka’an Facts
The Sian Ka’an Biosphere Reserve was established on the 20th of January 1986 by presidential decree (under President Miguel de la Madrid Hurtado) and became part of UNESCO’s Man and the Biosphere (MAB) program that same year. In 1987 the reserve was declared a UNESCO World Heritage Site. As part of the MAB program, Sian Ka’an faces the greatest challenge of conservation: to find a way to integrate human activities without compromising other forms of life contained within its boundaries.
Sian Ka’an is approximately 1.3 million acres in size and spans 120 kilometers from north to south (comprising almost one third of the Caribbean coast of Mexico). In 1994 an area of over 200,000 acres to the south of the Reserve was named a Protected area of Flora and Fauna of Uaymil, increasing the continuous area of protected land.
The reserve contains three large core zones where human activity is limited by permission
to scientific research. These areas, known as the Zonas Nucleares of Muyil, Cayo
Culebras, and Uaymil, cover a total area of almost 700,000 acres. Low-
There are five entrances to the reserve, located at Pulticub, Santa Teresa, Chumpón, Chunyaxché and Chac Mool. Guards employed by the governmental SEMARNAP organization are stationed at every entrance to enforce the Reserve regulations.
"Sian Ka’an" is translated from Mayan as "where the sky is born" or "gift from the
sky". The reserve is thought to have been inhabited in the pre-
Habitats found in Sian Ka’an
Coral Reef
The boundaries of the Sian Ka’an Biosphere Reserve include 110km of the
second largest barrier reef in the world, which extends onward past Belize and Honduras.
The reef is home to many important and several endangered species. Uncontrolled development
along the Caribbean coast of Mexico has placed the reef in grave danger, as it is
easily damaged and not so easily restored.
Beaches
The beaches of Sian Ka’an constitute a very important habitat and nesting
grounds for many species of wildlife, as well as serving as an important transition
between land and ocean. Most notably during the months of May through August, the
beach is a nesting ground for 4 endangered sea turtle species that have lost important
nesting sites along many parts of the Caribbean coast.
Dunes
The coastal dune is an important protector of inland habitats, especially during
storms. Coastal vegetation includes Coccoloba uvifera, Tournefortia gnaphalodes,
Suriana maritima, Sesuvium portalacastrum, Ambrosia hispida, Ipomoea and many other
species. (For a more complete list, refer to flora link).
Wetlands
Mangroves, savannas, swamps and marshes are all included within the classification
of “wetland”. Water plays a vital role in the existence of each of these habitats,
whether it be fresh, salty, or brackish. Wetlands line the coast of Sian Ka’an, playing
an important protective role as a type of buffer between the ocean and the land that
can absorb the impact of storms. Wetland areas contain immense biological diversity
and are home to a number of endangered species. Evident in all inundated wetlands
is a conglomeration of algae known as periphyton that is believed to play an important
role in the dissolution of calciferous soils, as well as being an invaluable source
of food for many species of fish, mollusks, and insects.
Mangroves
Four species of mangrove line the coastal areas of Sian Ka’an. The mangrove
communities are critical for the survival of many species of fish, birds, insects,
reptiles, and other plants. Many species of mangrove filter contaminated water and
trap loosened sediment, making them protectors of the coral reef and other littoral
habitats. The mangrove species found within Sian Ka’an are Rhizophora mangle (red
mangrove), Avicennia germinans (black mangrove), Laguncularia racemosa (white mangrove),
and Conocarpus erectus (buttonwood mangrove).
Savannas
Coastal savannas are large areas of low-
Cenotes or Sink holes
Fresh water contained in the Yucatan’s underground aquifer carves
away at the limestone above, weakening it and eventually causing it to give way.
The result of this phenomenon is a unique habitat known as a cenote or sink hole.
Many cenotes remain connected with the aquifer and with other cenotes through underground
passageways. Occasionally, however, cenotes are found to be completely isolated from
other bodies of water and may contain fish and other wildlife that have evolved over
time into completely distinct species.
Hummocks
Petenes, or hummocks, are isolated areas of forest from several meters to
several kilometers in diameter that are surrounded by swamps or inundated savanna
land. These formations are found only in Cuba, the Florida Everglades, and the Yucatan
Peninsula. There is often a cenote at the center of the hummock, which is surrounded
by concentric circles of vegetation, from hardwood trees to grasses and rushes. Common
species include cedar, mahogany, and zapote in the center ring, which are surrounded
by various palm trees and the poisonwood tree, and eventually mangrove, rushes, and
grasses. Many species of fauna live in hummocks, from insects to reptiles, mammals,
and birds.
Tasistales
A tasistal is a concentrated strip found within savanna land that contains
the tasiste palm (Acoellorraphe wrightii), the grass Cladium jamaicensis, and occasionally
other plant species such as poisonwood (Metopium brownei), buttonwood mangrove (Conocarpus
erectus), and cocoplum (Chrysalobanus icaco). The tasiste palm is extremely fire-
Fresh water lagoons
The fresh water lagoons of Sian Ka’an are supplied with fresh
water from the subterranean aquifer by small springs or cenotes. Found mostly inland,
the fresh water filters toward the ocean in channels or through the surrounding wetlands.
The lagoons are home to a number of species of fish and vegetation not found in the
coastal areas.
Brackish water lagoons
Ocean water and fresh water from inland and the aquifer meet
and mingle in the brackish water lagoons along the coast of Sian Ka’an. These lagoons
are lined with salt tolerant mangrove and grass species which provide a home to fish
and mollusk species that make the area an attractive nesting ground for wading birds
and residence of two crocodile species, Crocodylus moreletii and C. acutus.
Low tropical forest
Many of the mammal species found within Sian Ka’an reside within
the low tropical forest land which is located in the westerly portions of the reserve.
The forests contain many hardwood species, including chechem, chicozapote, mahogany,
tsalam, and other valued hardwoods. The environmental importance of these areas is
increased by the international demand for hardwood that is pressuring many countries
in the neotropics.

