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.
Panama Canal Cruise Lines. Most of the major lines and some smaller ones offer at least a few Panama Canal sailings each season. Princess designed two ships, Island Princess and Coral Princess, to sail the canal; each ship has more than 700 balcony staterooms, and both sail the canal all winter long.