I am, somewhat nervously, taking my two children (7 and 5) to WDW in August. I have fun memories of renting the water sprite motor boats on the seven seas lagoon, and I think my kids would love that. But, being by myself, I could only do it if the three of us could go together. I know we'd fit (were all kind of small), but I don't know if that would be allowed. Does anyone have any insight? Am I out of luck?