Christmas Island, a real island in the South Pacific somewhere between Hawaii and Fiji, became a bomb test base for British nuclear weapons in the 1950s. Britain's first successful nuclear explosion took place on Christmas Island in May, 1957.
In the 1960s, amidst frantic Cold War efforts at nuclear proliferation, the U.S. used Christmas Island as a base for their nuclear testing. American security forces referred to the nuclear project on the island using the code name "DOMINIC."
Sounds like a sweet getaway, just make sure to fish the nuclear residue out of your daquiri.