With teens this age, you're past the "corral them in kids' club all day" phase, which actually works in your favor here. Hyatt Ziva Cancun and Moon Palace both nail the all-inclusive model for older kids—they've got real water attractions (waterpark, FlowRider), decent dining variety, and enough independence built into the day so you're not herding anyone. The Hyatt's private-peninsula setup keeps things contained; Moon Palace's sheer scale means teens can actually roam without parents hovering. Either way, you're paying for convenience and variety, not babysitting.