The top-deck Retreat Pool will transform into the new Night Sky Lounge one night during each cruise, inviting guests to enjoy an open-air nightclub, including atmospheric pool and lighting, glowing drinks and a DJ on a state-of-the-art audio system. Guests can sip cocktails in the Jacuzzis, enjoy a flair bartending demonstration, and can even reserve a cabana with hosted bottle service.
“The Retreat Pool has already proved popular during the day with our guests and now they can experience it at night,” said Paul Ludlow, Princess Cruises’ managing director UK and Europe. “Cruising is all about guests making their own choices on how to spend their time on board, and ashore. What could be better than partying under the balmy Caribbean sky with spectacular views of the ocean?”
Guests will pay a nominal charge to enter the Night Sky Lounge.
Regal Princess begins her Caribbean cruise season on November 6 with a short preview sailing, followed by a schedule of seven-day cruises to ports in the Eastern Caribbean including St. Thomas, St. Maarten and Princess Cays in the Bahamas.
CruiseMiss.com 
Regal Princess is doing a lot more “Nominal Charging” ist passengers than their other Princess cruise ships.