For all of you Beach/Yacht Club vets, do you rent the round tubes for SAB? And if so, in which part of SAB do you really need/use them? We will be a party of me, hubby, 17-year-old and a 8-year old. Trying to budget for little things like this. But if we were to rent say 3 of them for 3 of the 6 days we will be there that will be $90.00. Yikes!