Main Islands of the Gulf of Guinea: What to See on Each One

by Carlota | June 30, 2026

Santo Tomé and Príncipe Island

The Gulf of Guinea stretches across the Atlantic Ocean along the coasts of West Africa, from Liberia to Togo. Its islands combine colonial history, unspoiled nature, and nearly deserted beaches, making them one of the most authentic and least crowded destinations on the continent.

The main islands of the Gulf of Guinea are São Tomé and Príncipe, which together form the republic that bears their name, and the island of Bioko, part of Equatorial Guinea and located off the coast of Cameroon. São Tomé is the largest island and the capital of the republic.

What to See on São Tomé Island

Fort of São Sebastião

Built to protect the island from external attacks, this fort was the main maritime defense point for the city and the rest of the archipelago. Today it houses the National Museum of São Tomé, where the building and its surroundings vividly convey the colonial era and the Portuguese presence in this part of Africa. The views over the sea from its walls are one of its greatest attractions.

Presidential Palace

The official residence of the President of the Republic of São Tomé and Príncipe, the palace can only be visited from the outside. Despite this limitation, and the fact that photography may be restricted, its architecture makes the visit worthwhile.

Cathedral of Nossa Senhora da Graça

The most important cathedral in the entire Gulf of Guinea is located in the Água Grande district. Its two large bell towers and austere interior are a direct testament to the Portuguese colonial architecture that defines much of the island's heritage.

Avenida da Independência and Avenida de Conceição

These two avenues concentrate the majority of the island's commerce and nightlife: shops, banks, and the most popular venues in São Tomé. A must-walk route to get a feel for the daily pulse of the capital.

Mercado Velho and Mercado Novo

The two main markets on the island, located right in the historic center. They offer local food, exotic fruits, and handicrafts, and supply many of the shops and restaurants in the area. Their peeling facades and weathered walls give them an authentic character that is hard to find in other African markets. Hygiene conditions are basic, but the experience and the warmth of the locals make the visit worthwhile.

View of São Tomé Island, in the Gulf of Guinea

Claudio Corallo Chocolate Factory

A unique visit to understand the complete cocoa process: from the plantations to the finished chocolate. The Claudio Corallo brand has international recognition, and the factory allows visitors to see both the cultivation and the transformation of the fruit up close. A must-stop for any traveler curious about local gastronomy.

Blue Lake

Despite its name, the Blue Lake is actually a beach on the coast of São Tomé. Its main draw is its crystal-clear waters, ideal for snorkeling, and the enormous baobab trees that reach right down to the shoreline, creating a truly unique landscape.

São Nicolau Waterfall

Accessible via a turn-off from the main road, this waterfall is located deep within a stretch of virgin rainforest. The surroundings are peaceful and rarely visited, making it a perfect spot for those looking for nature away from the crowds.

Pico Cão Grande

One of the most iconic landmarks in São Tomé and Príncipe: a volcanic formation that rises more than 600 meters above the ground, its summit usually shrouded in clouds. It is a popular destination for climbing enthusiasts, though it is recommended to go with an organized excursion and local guides, as the surrounding forests have a high presence of snakes.

Rolas Island

Known as the center of the world for being crossed by the Greenwich Meridian right on the equatorial line, Rolas is a paradise for scuba divers. Rocky formations covered in vegetation, fine sandy beaches, and crystal-clear waters make up a spectacular landscape that has yet to be overrun by tourism.

Príncipe Island

Despite its small size, Príncipe Island is home to some of the best beaches in Africa. Banana Beach, Praia Grande, and Praia Boi are virtually deserted and remain in an extraordinary natural state: every year thousands of turtles come ashore to lay their eggs, and the marine life in its waters is unique on the continent. One of the most unknown and most beautiful islands in the Gulf of Guinea.

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