Body of water
Lake Bacalar
Abantu bendawo abangu-38 bayatusa,
Amacebiso avela kubantu bendawo
It is about 3 hours drive from Playa but it is totally worth it. Maybe worth spending the night there, but if you leave around 7 am, getting there at 10 is just fine. There are some good local restaurants too.
It's also called the Lake of Seven Colors, all shades of blue. It's about 2 hours away. The Cenote Azul is incredible beautiful too.
For the adventurous. Lagoon of Seven Colors due to its blue and turquoise hues. This is a full day trip, 2 hr 49 min (241.3 km) via México 307, you can swim or take boat rides to bird island, underwater cenotes, and rapids.
Bacalar Lagoon is a spectacular water body known for its multiple shades of blue. People traditionally know it as "the 7-colors lagoon".