Bridget is offered the opportunity of a lifetime to host a new Travel Channel show that takes her to the world's best beaches--and this girl knows she needs to step up her game if she wants to succeed! She decides to get certified in scuba diving and takes Holly and Bridget along for the ride. But before they can take the plunge, they need to hit the books and take a classroom course that'll teach them the basics of diving, and then it's off to the Mansion pool to test out their new scuba equipment. Finally, the girls go on a quick little getaway to Catalina Island to tackle their first open water dive. But when Kendra and Holly start having second thoughts about heading out, can Bridget convince them to go for it? Meanwhile, Hef takes a boatload of his beauties to visit the girls at sea and show their support.