Leonardo was seen relaxing in the shallows with new flame Nina, looking the picture of happiness as the blonde bombshell wrapped her arms around his neck.
The Titanic star kept a protective hold on the Sports Illustrated stunner as they enjoyed a relaxing dip in the ocean.
The eco-conscious actor and Nina were then seen returning to the shore, stretching out on the sand to dry off in the sunshine.
The pair looked totally loved-up as they chatted away, before Leonardo reached down and planted a tender kiss on his new girlfriend’s lips.
It was first suggested the Oscar-winning actor and Nina had rekindled their rekindled their relationship emerged when they were pictured hanging out in Montauk.
See some photos below…