Ithaa Undersea restaurant sits 16 feet below sea level at the Conrad Maldives Rangali Island, a hotel resort in Hilton's luxury brand that occupies two islands. Maldives is a country of almost 1,200 islands about 300 miles from the southernmost points of India and Sri Lanka. The two islands on which the Conrad Maldives Rangali Island resort is situated are linked by a walkway.