Bindi Iriwn and her boyfriend, Chandler Powell, enjoyed some romantic fun in the sun on the North Shore of Oahu, Hawaii.
Sparks really seemed to fly out of the water, where Bindi and Chandler, 19, packed on the PDA -- locking lips and embracing sweetly in the soft sand.
An eyewitness tells ET that the cute couple vacationed in the Hau'ula neighborhood of Oahu, in a beautiful beachside rental home.
According to an eyewitness, Bindi and Chandler would spend time snuggling on the beach in the mornings when her mom would go for a morning job. The couple seemed to have a great time hanging out with Bindi's brother, adorably sneaking kisses when he wasn't looking.
Bindi Irwin through the years:
An eyewitness tells ET that the couple stayed close throughout the trip, and kept their PDA to a minimum, when they managed to sneak some alone time.
When they weren't hanging out on the Oahu beach, the group took day trips to some of the island's famous sights and attractions, according to ET's source.
The group visited beloved surf spot Pipeline beach, where they all enjoyed a nice seaside picnic, and explored the tourist traps in the local neighborhood of Haleiwa. The group also went on several stunning hiking trips along the Hanauma Bay trail and the Hau'ula loop trail.
Bindi, who lives with her mother and brother in Australia, admitted to ET in October that it's been challenging to maintain her long-distance relationship with Chandler, who lives in the U.S. Check out the video below to hear Bindi's secret to successful long-distance dating.