On Friday, the “Titanic” star, 45, was seen partying on a yacht to celebrate his girlfriend Camila Morrone’s 23rd birthday, in photos exclusively obtained by Page Six.

DiCaprio was one of the few guests to don wear a mask at the crowded affair. Invitees wore cowboy hats and western attire.

Actress Nina Dobrev, Olympic snowboarder Shaun White, actors Kevin Connolly and Lukas Haas attended the seabound affair.

The boat, a 43-meter Leight Star Super Yacht, docked at Marina Del Rey in LA. It sailed out toward Malibu at 11 a.m. and returned to shore around 4:30 p.m.

Morrone, a model, and DiCaprio have been together since December 2017. They made their Oscars debut this February, the first time the actor has brought a date to the award show since bringing Gisele Bundchen in 2005. Morrone recently fostered a dog during quarantine.

In January, DiCaprio rescued a man who had fallen off a yacht in St. Martin.