The Costa Serena is the ship of space and light. Its name symbolizes harmony and serenity. Costa Serena and her sister ship Costa Concordia, are the largest and longest ships in the fleet. The prestigious Samsara Spa spreads over two decks and is a haven of wellness and relaxation. The beautiful Samsara Suites have direct access to the Spa. Over 500 cabins have balconies. There are 4 swimming pools, two with glass roofs.