Izu Oshima
Oshima is an island lying about 100 km south of Tokyo and is the largest of the Izu Islands, a group of volcanic islands administered by the Tokyo Metropolitan government. Like the other ones, it is accessible (among other options) by a high-speed jet ferry that uses the hydrofoil technique: It makes it possible to get there from Tokyo in a mere 1h45. Oshima offers various interesting activities: Among the most popular are the beaches (made of black sand), the onsens and the volcano (Mount Mihara). There are also a zoo, a large camellia garden and a squirrel park.