Each child rides solo and in tandem with a sibling and also takes a turn at driving the boat. Maya, due to her small size and light weight, invariably produced the most spectacular rides bouncing high off the tube and hanging off the edges. The kids could have kept tubing all night but I decided that about half a dozen major crashes was about the right number to preclude any major brain damage. Jeanine wisely chose to spend much of the day on the shore enjoying a book, time by herself, and adding to her journal.