From Tokyo drive in the direction of Chiba and then into Togane. When you hit the beach from the toll road, Motosuka is about 1km north just on the other side of the small river.
Good thermal winds during the warmer season.
Only during the Monsoon season that it is really calm. The monsoons run from early june until late July.
Before and after those seasons are the best consistant winds.
During the winter the winds are generally offshore and the water is WAY to cold.