We found the Dells Watersports website when we were getting ready for our trip to Lake Delton, and they looked like a pretty good option for renting a boat. When we got there, we found the staff to be very friendly and helpful. Even without a reservation, we were able to get a boat without any wait time at all. We rented a ski boat, along with skis and tube, for two hours and had an amazing time on the lake. During the first few minutes of our rental, one of their employees even drove by on his boat to make sure everything was working/operating OK.
They are a little expensive, especially when you add in the fuel and taxes, but we found just about everything in the Dells to be expensive, so no big surprise there. Be sure to check their prices online before you go to avoid the inevitable sticker shock.
All in all, we had a great time! :-)
This review is the subjective opinion of a TripAdvisor member and not of TripAdvisor LLC.