Algae (seaweed) Sargassum, Caribbean

Since 2011 these two varieties of seaweed called Sargassum – Sargassum fluitans and Sargassum natans- gradually take possession of the arc Caribbean, from the Dominican Republic to Barbados through the Mexican coast. This year, the number of the banks affected by the invasion of algae is so high that more and more tourists have decided to cancel their summer vacations.
Many countries affected by the phenomenon were forced to release emergency funds for cleaning and removing these huge piles of stinky seaweed, which can reach up to three meters high on some beaches. On the island of Tobago, the authorities have even declared a state of “natural disaster”.
A few months before the peak tourist season, some leaders in the region called for an emergency meeting of the Caribbean Community, group of 15 countries. They fear that the worsening of this phenomenon strongly hits the economy of the region, the most tourism-dependent in the world.



“Sargassum seaweed rotting and strong odors”


Where do these algae come from?

According to a note prepared for the leadership of the Environment, Planning and Housing (DEAL) of Guadeloupe, the Sargassum are unsavory fruit of the land-based pollution that contaminates the oceans combined with climate change that could influence some marine currents.
For marine biologist, these large “rafts” of several centimeters thick does not come directly from the Sargasso Sea, contrary to what the name indicates. They circulate in the Atlantic before coming to feed in northern Brazil nitrates and phosphates carried down by the rivers of the Amazon.


Take your holidays on the Pacific side to be a little bit sure.


Affected area




This French company is the first in the world to completely replace plastic by algae. This is the solution without plastic, 100% algae-based oil excluding any derivative use in its composition. An alternative to reduce pollution from plastics at sea and on land.
“All projects are designed to remove algae from our shores”
For s Expédition 7ème Continent the issue of alternatives to plastic is fundamental. Moreover, CNRS scientists have wondered whether Sargassum use plastic waste to proliferate. This issue will be considered at the next expedition that will start on May, 15th from the Port of Marin in Martinique.
Deixonne Patrick (Head of Expédition 7ème Continent) and Remy Lucas (Founder of Algopack) announced: “We are pleased to have found a solution that can replace plastic as much as possible and limit its spread in nature we can encourage economic pickup of this invasive alga and create jobs locally. The application areas are numerous: telephony, packaging materials for the food supply, garden items, stationery: like USB, decorative items, lamps, panel signs. “

Roatan, Honduras

Roatan is an island of Honduras in the Caribbean Sea. It is the largest of the islands of the Department of Islas de Bahia, and it measures approximately 60 kilometres long for less than 8 kilometres wide in its widest. Its capital is Coxen Hole, in the South-West of the island.


Roatan is a destination of choice for lovers of diving because it has the second reef in importance, after the great barrier reef in Australia. Apparently, 90% of marine life of Caribbean is there, so keep your eyes open wide to see the multitude of sea turtles, rays and moray eels.
For the epicureans this destination includes many highly reputed restaurants of fish and sea fruits.


Cozumel, Mexico

Cozumel, a paradise island for divers, is at the East coast of the Yucatan, Mexico. Captain Jacques Cousteau, a famous oceanographic explorer, made known the beauty of the coral reef through his documentaries where international divers start looking for marine pleasure.


Even if you do not practice diving, you will certainly be tempted to take a mask and a snorkel to embark on the adventure and admire the many underwater species in clear and turquoise water, the boldest can take diving courses and go with guides on the reefs. Local certified divers have several predestined locations but it is the North of the island which has their preference with the most beautiful seabed that aexist.

If despite all the diving is not your priority, you might want to go to the ecological reserve of Park of Punta Sur where you can see beautiful specimens of migratory waterfowl, turtles and yellow crocodiles, climb the stairs of the lighthouse of Punta Celarain where your effort will be rewarded with a breathtaking lagoon view, go on a catamaran for a guided tour of the lagoon or enjoy the calm waters for kayaking.

The island presents also a cultural aspect that adds to its charm with the ruins on several sites like Tumba del Caracol in homage to the God Kukulcan or another most important San Gervasio with temples where the Mayan goddess Ixchel was honored, the ruins of Castillo Real are worth the detour with its tower and its colourful frescoes that have resisted at the time. You can find shops of souvenirs and restaurants on these different points of visit.

Sea excursions are also available to fans of fishing.

The beautiful beaches of white sand will tempt you to practice the international ‘sport’ of ‘doing nothing that relax’.

Dive to depths greater than 30 meters in a submarine, piloted by a professional crew is also possible. Discover why Cozumel is one of the best diving destinations in the world aboard the Atlantis submarine! Make a submarine trip to Chankanaab, a marine park protected environment, the amazing coral formations and a variety of marine animals.

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