The Hotel Haegumgang is a floating hotel that began operations in Queensland, Australia, was moved to Vietnam, and is currently docked at Mount Kumgang on the east coast North Korea. According to the Australian Broadcasting Corporation, it "has developed something of a cult following in Australia".

The hotel was the brainchild of Australian developer Doug Tarca and his son Peter. It was constructed in Singapore and opened in 1988 as the John Brewer Floating Hotel. It was positioned on the John Brewer Reef, in the Great Barrier Reef off the coast of Townsville, Queensland, Australia.

The seven-storey structure had nearly 200 rooms, nightclub, bars, restaurants, a helipad, and a tennis court. However, the hotel soon began to struggle financially. 

It operated as the Four Seasons Barrier Reef Resort for a year until it was relocated to Ho Chi Minh City, Vietnam in 1989, operating as the Saigon Floating Hotel.

It was moored in the Saigon River, near the Tran Hung Dao Statue, from 1989 to 1997. Colloquially known as "The Floater", it was a popular nightspot, but again ran into financial difficulties. 

The hotel was bought by North Korea and taken to the Mount Kumgang Tourist Region which opened in 1998 on the border between North and South Korea.

According to en.wikipedia