You will have a hard job counting all the octopus images on this tiny island. Even the police station is shaped like one. Octopus and fugu, that is what it’s famous for. The main industries are fishing and tourism. Himakajima makes a nice escape from Nagoya/Toyota. Welcome to the island without traffic lights! (except for one)
We recommend to rent a bike. You can peddle around the island in less than 1 hour, stops included. Taking your bike on the ferry costs around 1300 Yen, which is more expensive than to rent one.