Though “landlocked”, Austria (like Switzerland) has large lakes that can generate waves for downwinding. And there are also many beautiful places for peaceful paddling.
Downwinds & Paddles
Downwind
Lake Constance (Germany, Austria, Switzerland) see Switzerland
Canoeing Austria Austria has a very strong tradition in whitewater canoeing and kayaking. Surfskis are newcomers, but you may find some boaters in a club who are also interested in surfskis
Paddel Club Leoben sponsors the Mur Challenge Race which includes surfskis