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Ocean Calling

Ocean Atlas · Africa

Africa

Guinea-Bissau

A UNESCO archipelago where green turtles nest in huge numbers and hippos swim in salt water.

Green turtle
Green turtle, found in the waters of the wider region · Photo: James Thornton on Unsplash
Story only

Story only, for now. We love learning about this place and its ocean, so we share its story here and do not sell trips yet. Checked by Ocean Calling on 6 Oct 2026. Sources: Conservation Progress in the Bijagós Archipelago, Guinea-Bissau, SWOT / Sea Turtle Status; Guinea-Bissau travel advice, Safety and security, UK FCDO; Guinea-Bissau travel advice, Health, UK FCDO.

Why: The Bijagós islands hold one of Africa's great green turtle nesting places: about 40,000 nests were counted on tiny Poilão in 2014, and the island and nearby Orango National Park have both been protected as national parks since 2000. Orango is also known for West African manatees, and local people work as turtle patrols. We love sharing this story from afar, and if we ever visit we would only watch from a respectful distance, never swim with, touch or disturb the animals.

⚠️ Official travel advice is a separate question, and it differs by passport. EU citizens or US citizens may be advised against travelling there, so please check your own government’s website before you plan.

Turtles

Why Guinea-Bissau

The Bijagos Archipelago has been a UNESCO biosphere reserve since 1996 and became a World Heritage site in July 2025. It has 88 islands and is the most important place in Africa for green turtle nests. On the island of Poilao alone, there were more than 62,000 nests in 2020. The lagoons of Orango Grande hold the only known group of hippos that live in salt water. The country had a military takeover in November 2025, so Ocean Calling is only researching it for now.

Conservation-led. Ocean Calling guests never chase, touch or bait animals.

W. SaharaDem. Rep. CongoChadBrazilFranceSenegalMaliMauritaniaBeninNigerNigeriaCameroonTogoGhanaCôte d'IvoireGuineaGuinea-BissauLiberiaSierra LeoneBurkina FasoCentral African Rep.CongoGabonEq. GuineaAngolaGambiaAlgeriaMoroccoLibyaOrango Grande and Orango National Park, Guinea-BissauPoilao Island, Guinea-Bissau

When to go

Timing changes a lot from place to place. See each place below.

We share this place as a story so you can learn. There is no Ocean Calling trip.

Our ethics check

Can we travel here ethically?

Story only

We tell the story. We do not sell a trip here.

Checked 6 Oct 2026. Places change, so we look again every year.

Sources for this check
The story

Where in Guinea-Bissau

We share these places as stories and research notes. We do not offer or sell trips here.

Orango Grande and Orango National Park

Story only

An island national park with mangroves, savanna and the only known salt water hippos.

Also seen: Saltwater hippos (from the shore or a boat at a safe distance)

Poilao Island

Story only

A very small island and the most important green turtle nesting beach in the archipelago.

Also seen: Green turtle nesting (a nesting beach)

Animals

Animals recorded in Guinea-Bissau

Tap an animal to learn how it lives, where it travels and how to meet it respectfully.

Land animals
Green turtle resting on the reef, shell and head pattern in sharp detailGreen turtleChelonia mydasSeen in 103 countries in the AtlasLeast ConcernHawksbill turtle swimming, pointed beak in profileHawksbill turtleEretmochelys imbricataSeen in 88 countries in the AtlasCritically EndangeredMother and calf manatee diving together in the Casamance River, SenegalWest African manateeTrichechus senegalensisSeen in 15 countries in the AtlasVulnerableTwo Atlantic humpback dolphin dorsal fins at the surface of calm water in Guinea-BissauAtlantic humpback dolphinSousa teusziiSeen in 13 countries in the AtlasCritically EndangeredHippopotamuses resting in a lagoon on Orango island with only their backs above the water and trees along the shoreCommon hippopotamusHippopotamus amphibiusSeen in 17 countries in the AtlasLives on landVulnerableFreshwater sawfish (largetooth sawfish) in the Townsville region, Queensland, AustraliaSawfish (largetooth and smalltooth)Pristis pristis and Pristis pectinataSeen in 7 countries in the AtlasCritically EndangeredCommon bottlenose dolphin swimming over a seagrass bedCommon bottlenose dolphinTursiops truncatusSeen in 89 countries in the AtlasLeast ConcernSperm whale mother raising her fluke beside her calf off DominicaSperm whalePhyseter macrocephalusSeen in 114 countries in the AtlasVulnerableScalloped hammerhead shark cruising in deep blue Red Sea waterScalloped hammerheadSphyrna lewiniSeen in 57 countries in the AtlasCritically EndangeredBlacktip shark swimming in green water in the GalápagosBlacktip sharkCarcharhinus limbatusSeen in 49 countries in the AtlasVulnerableWhitespotted eagle ray gliding over reef and sand in BelizeWhitespotted eagle rayAetobatus narinariSeen in 58 countries in the AtlasEndangeredLemon shark seen from above, gliding over a pale sandy seabedLemon sharkNegaprion brevirostrisSeen in 16 countries in the AtlasVulnerableBlackchin guitarfish lying on pale sand beside rocks, with a shark-like tail and two tall dorsal finsBlackchin guitarfishGlaucostegus cemiculusSeen in 20 countries in the AtlasCritically EndangeredSpiny dogfish resting on the seabed at the Josephine Marie shipwreck, Stellwagen Bank National Marine SanctuarySpiny dogfishSqualus acanthiasSeen in 47 countries in the AtlasVulnerableDusky grouper underwater at Cabo de Palos, SpainDusky grouperEpinephelus marginatusSeen in 40 countries in the AtlasVulnerableDiver beside an Atlantic goliath grouper at Dry Tortugas National ParkGoliath grouperEpinephelus itajaraSeen in 25 countries in the AtlasVulnerableMilk sharkRhizoprionodon acutusSeen in 33 countries in the AtlasVulnerableTwo spotted ragged-tooth sharks resting under a rocky overhang at Aliwal Shoal, South AfricaRagged-tooth shark (sand tiger)Carcharias taurusSeen in 17 countries in the AtlasCritically EndangeredAtlantic weasel sharkParagaleus pectoralisSeen in 18 countries in the AtlasEndangeredCommon smooth-hound swimming just above a sandy seabed, with a slim grey-brown body and two dorsal finsCommon smooth-houndMustelus mustelusSeen in 35 countries in the AtlasEndangeredGreat cormorant perched on a branch, with white head plumes and a glossy blue-black backGreat cormorantPhalacrocorax carboSeen in 90 countries in the AtlasLeast ConcernReed cormorant perched on a low stump among tall reedsReed cormorant (long-tailed cormorant)Microcarbo africanusSeen in 27 countries in the AtlasLeast ConcernAfrican darter with wings spread low over the water, droplets flyingAfrican darterAnhinga rufaSeen in 21 countries in the AtlasLeast ConcernMarbled electric ray lying on a sandy seabed, spotted pattern visibleMarbled electric rayTorpedo marmorataSeen in 18 countries in the AtlasVulnerableBrown ray resting on a sandy seabed, with a blue-centred eyespot on each wingBrown rayRaja miraletusSeen in 18 countries in the AtlasLeast ConcernNursehound resting on a rocky ledge among spongesNursehoundScyliorhinus stellarisSeen in 16 countries in the AtlasVulnerableCommon torpedo resting on sand, showing the dark spots on its round discCommon torpedo (ocellate torpedo)Torpedo torpedoSeen in 16 countries in the AtlasVulnerableSmooth lanternsharkEtmopterus pusillusSeen in 16 countries in the AtlasLeast Concern
Curious?

Why this is a story, not a trip

Read our ethics check above. If you would like to talk about it, Rocío is happy to explain.

Ask RocíoBack to the Ocean Atlas

Also in Africa
AngolaBeninCabo VerdeCameroonCôte d'IvoireDemocratic Republic of the CongoEquatorial GuineaGabonGambiaGhanaGuineaKenyaLiberiaMauritaniaMozambiqueNamibiaNigeriaRepublic of the CongoSaint HelenaSão Tomé and PríncipeSenegalSierra LeoneSouth AfricaTanzaniaTogoWestern Sahara

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