Police have charged three men after an alleged arson attack at a Gold Coast marina saw five boats go up in flames earlier this month.

It will be alleged a number of people were seen throwing petrol on one of the boats at Hope Harbour Marina about 11.15pm on June 2.

Police divers searched two sunken boats after the blaze, when the owners could not initially be contacted.

Five boats sustained varying degrees of fire and heat damage. Nobody was injured in the incident.

A 33-year-old Dugandan man and two Fernvale men, aged 21 and 25, have been charged with three counts of arson, entering a premises with intent to commit an indictable offence and endangering property by fire.

The 33-year-old has also been charged with one count of attempted fraud. He is due to appear in the Southport Magistrates Court on August 26.

The Fernvale men will appear in the same court on August 10.