When you can use this http://www.powerski.com/home.html
Looks a bit like a stand up jetski missing a few parts.
Howzit Ohsenbai, Bob Montgomery who has been involved with powerski since the begiining is a friend who I surfed with for years in the H.B. area and I remember seeing him in 94 and he was telling me all about the skis and was actually talking with the Disney people about using them at Disney World. Seems they’ve come a long way with their product. Check the team link for Bob’s involvment with the co. Aloha,Kokua