The Aqua Park bit is an inflatable obstacle course, with lots to climb up, bounce on, balance your way across, and slide or jump down. I was just as terrible at it as you imagine, but I had a lot of fun. (It didn't help that Yag kept humming the theme from On Her Majesty's Secret Service, which tended to make me laugh and fall off.)
Paddle boarding, on the other hand, turns out to be a relaxing and contemplative activity. We were the only two takers for this late-evening session (having done the Aqua Park in the company of a dozen very excited children), and we floated around chatting to each other. I only fell off once, but I should probably have been a little more daring and done it more often. By the end of the session I could just about stand up on the board without my knees wobbling and calves protesting.
We were both ravenous after all this fresh air and exercise, so headed into town to eat burgers before I hit the road for home.