that power tubing is terrifying. Especially when the boat driver has no idea of what he is doing (DH). BIL went first. Good thing too since DH flipped the tube TWICE, DOING THE SAME THING. Then BIL fell in all by himself once! LOL! And this lake is COLD! As in the shock nearly incapacitates you.
After they got it figured out, we all took turns riding it. I went (slow) with DD, and it was still scary. Especially since a couple of times the tube (actually, it's shaped like a loveseat!) threatened to sink.
I also discovered today that my 8 foot sit-on-top kayak is no substitute for a stand up paddle board. I could paddle it okay kneeling, but after falling off 3 times trying to paddle it while standing up, I gave up. It's less stable than standing on the flat side of a BOSU ball. I managed to paddle once or twice, then lost balance, and in I went!
There is a commercial showing a guy jumping off a dock into a lake, then screaming... because Canadians are used to cold lakes... that would be how cold this lake it. Water straight off the Rocky Mountains.