Go to Lake Powell and Flaming Gorge regularly. Can rent houseboats on both. Flaming Gorge rents turds, and Powell charges 2 times as much as any other lake I have ever seen. But that said, both are very fun.... Oh...and neither rents tow boats.
Powell Juice
Powell CLiff Jumping
Turn Houseboat on the Gorge
Najavo Canyon at Powell
Gorge surfing....