Stretching more than 2100 square metres, the biggest spa sanctuary at sea is now afloat following the debut on Sunday of Costa Cruises‘ giant Costa Concordia. The enormous Samsara Spa wellness centre is located on what is the largest cruise ship based in Europe. The ship was christened at the weekend by Eva Herzigova; and the new 112,000-ton megaliner also boasts another cruising first – a full-scale Formula One driving simulator with real G forces and vibrations!