Dancing with the Stars Pros' All-Star Summer GetawaysSwimming with dolphins! Hitting the Hamptons! The dancers tell PEOPLE how they chilled before suiting up for the show's Sept. 24 premiere

CHELSIE HIGHTOWER: SWAM WITH DOLPHINS

Celebrating her 23rd birthday, the ballroom dancer beams as she gets a little love from her newfound pal during a July 21 swim with dolphins in Cancun, Mexico. "They are such gentle, smart and amazing creatures," she tells PEOPLE.