The tolerance came to Dakar, and my friends took me to the island in their spare time. The island is not far from Dakar, about 20 minutes by boat, and the ticket is about $10. The island has some long history and unrepentant memories, in the colonial era was a famous slave trading distribution center in West Africa, the island's small museum recorded a sad history, there are still the basements that once held slaves, and defense artillery. Because of unmaintained, the government department was neglected, many of the facilities were dilapidated, the islanders used the basement to live, and the largest battery became a resident's residence. The island is very windy and the surrounding sea is blue, many unknown birds hover in the air, and the small streets are planted with tropical flowers and plants, and it is still very pleasant to stroll around.