With two homely, fully equipped bungalows near the local break, this place is (as you might guess) on the east coast of Tanegashima. Reservations are essential. The owner is an English-speaking Japanese surfer who also runs a great on-site cafe serving simple favourites like curry and fried shrimp with rice (open from 11am to 6pm, Thursday to Tuesday).
You'll need your own wheels to get to the coast as it's quite a way from town.