Everything you could want with a beach combined with everything you could want with a park. There's a small entrance fee but that's not too troublesome.
From that point you enter a grassy path divided by a small road to the beach. Lots of coconut trees and other foliage to provide shade and one could easily put down a blanket and have a picnic there if sand is not your taste, along the way the coastline offers lovely secluded areas to swim if you might want to. The picture below was taken in one such spot.
The main area has everything a beach might need. Active lifeguards, cabanas and seating (though these will be limited when it's busy there), bars, restaurants, bathrooms, changing rooms (still public restrooms so expect public filth); outdoor showers pool style (won't always have water especially during the dry season) and shops selling anything you might need for the beach and some souvenirs if you like.
If you want to explore beyonce there are glass bottom boats willing to take you to explore the coral reef, the nylon pool etc.
Jet skis, padle boards, scuba gear, kite surfing and other sports can be found as well.
There's an area reserved for formal gatherings and small weddings are often done here.