Ryanh....I think the ship seems crowded w/ teens because there is no place for them to go if were at sea, etc. But while in Castaway, (having teens myself) I know not all of them go to Castaway or at least for not the whole day. My sons stayed up so late each night that they slept til noon each day, even Castaway day. Some stay on the ship, or are there only half day or just hang out w/ their families. The ones usually at the Teen Beach are the teens who have joined the excursion ...or like us, big teens who find the family beach too crowded...shhh