Cortisol is produced and secreted by the adrenal glands. Production of the hormone is regulated by the hypothalamus in the brain and by the pituitary gland, a tiny organ located below the brain.
Cruise lines that operate private islands: Celebrity Cruises, Costa Cruises, Disney Cruise Line, Holland America Line, Princess Cruises and Royal Caribbean International. Disney Cruise Line calls at its private island, Castaway Cay, on itineraries from Port Canaveral.
Royal Caribbean International | Cruisers hit the beach at Royal Caribbean's private island in Labadee, Haiti. A Guide to Cruise Line Private Islands. Cruise lines' private islands offer passengers much more than just a day at the beach. The exclusive destinations are some of the favorite ports of call for cruisers, who are the only ones who get to enjoy the water parks and zip lines, and snorkel and kayak in the crystal waters.