Lived in Nagoya for a year and windsurfed mainly in salt water in Ise-wan and Omaezaki , but decided to try sailing here as well on strong a north westerly. It was a lot of fun. Great spot!
It’s Lake Hamana located in the west part of Shizuoka pref. About 24 knots. I won’t recommend you to hire gears in this area. There aren’t enough gears in shops around here.