It’s officially sunny summer time … and Hollywood is ready to get outside and stay active n’ cool with an array of water sports.

Sydney Sweeney‘s letting the girls get some fun in the sun … busting out of a brown bikini as she lounges on a jet ski.

Hailey Bieber‘s saying “SUP” … paddling around on a stand-up paddle board for a sexy workout in a neon green bikini.

Patrick Schwarzenegger and Abby Champion are going under the sea … for some couple’s snorkeling … but only after sipping a freshly opened coconut on a boat.

Diplo‘s going a little more extreme … with some wakeboarding … all while chugging a canned beverage. Send it!!!