40 knots breeze? Apparently it will get stronger so... I wouldn't recommend kite surfing today unless you are a professional kite surfer with a 3-4m kite. (on the river might be a little better but I'm not sure now)
you guys are soft. couldnt you just use a 12m bow kite????I hear they have a HUGE wind range and 100 piss ant,opps sorry, 100 percent de-power......safe as holidaying at the safari lodge