All-inclusive natural aquarium park — admission (~$90-$110 USD adults / $45-$55 USD kids 5-11) covers food, drinks, and snorkel gear. The calm inlet is ideal for toddlers and young swimmers; life vests provided free. Arrive early to claim a shaded palapa near the water. Baby-changing stations and nursing lounge available near the main entrance.

Address: Carretera Chetumal-Cancun Km 240, Tulum, QR

Google Maps: Click here for directions

Cost: Paid $$$