Channel your inner mermaid. The Jules’ Undersea Lodge offers overnight stays in their underwater hotel in Key Largo, Florida. Originally a research laboratory used to explore the continental shelf off the coast of Puerto Rico, it has been modified to have an air conditioned living space with 2 private bedrooms, a small kitchen, hot showers and an eight by twenty foot common room. You actually scuba dive down 21 feet in a lagoon filled with reef fish and surface in a “moon pool”, a sort of small swimming pool in the wet room of the living quarters. You can even arrange to have pizza “delivered” for your dinner! Ariel would be happy to stay here!