Once you had paid to visit the Lagoonarium, it was free to use most of the facilities there. This made it incredibly good value in French Polynesia, where everything seems to be at rip-off prices.
These boats are very easy to steer and hard to capsize and great fun. But be careful you don't burn too much. I appear to be wearing a lot of clothing in this picture, and it wasn't because it was cold! I had just started to burn with all the sun reflecting off the water!
When I tried to go all the way around the Lagoonarium in this, the wind got so strong on one side of the island that I ended up turning back as I reckon I would have otherwise capsized or been blown into the rocks! So take care.