- Jules' Undersea Lodge
- United States (Key Largo)
The first entirely underwater hotel is Jules' Undersea Lodge, in Key Largo, Florida, USA, which opened in 1986. Guests dive down 9 m (30 ft) to the lodge, which sits on legs 1.5 m (5 ft) off the bottom of the Emerald Lagoon, entering via a "moon pool" entrance in the hotel. The air-conditioned interior boasts two 2.4 x 3-m (8 x 10-ft) bedrooms plus a 2.4 x 6-m (8 x 20-ft) common room. Originally built as an undersea research laboratory, the lodge was co-developed as a hotel by Ian Koblick and Neil Monney. Guests have included former Canadian Prime Minister Pierre Trudeau and rock star Steve Tyler of Aerosmith.