I went there on a week-end on a motorcycle trip and planted the tent on the beach in front of this 30m tall rock. It was beginning of october so no-one around. Beutiful long beach with the sunrise stright in front if you're there to catch it. There is a hotel and a restaurant bar accross the road.
This is a gorgeous beach that is off the beaten path. There are still hordes of people, like anywhere you go in Japan, but the view overlooking the beach is gorgeous. They have a rest area at the top of the hill overlooking this beach....it's worth stopping.