Tokashiki Island, one of the famous island among Kerama Isles, is close to Naha, and is the largest of them.
You just need 70 minutes to reach there by ferry, so it is a perfect one-day trip destination from Naha.
Being the island with superb “Kerama Blue Sea”, one of the home to most transparent sea water in the world, Tokashiki Island has many marine activities to offer to its visitors from April to October, such as diving and snorkeling, starting from beginner level! During winter, from January to March, the local popular activity is to observe humpback whales from a whale watching boat!