Great Barrier Reef's Pumpkin Island, once won in a poker game and used in beer commercials, on the market

Picturesque Pumpkin Island is 16 kilometres off the central Queensland coast. (Supplied)

This little-known island on the Great Barrier Reef off Yeppoon is as picturesque as the Whitsundays, but you may not have not heard of Pumpkin Island, nor its colourful history. 

Maybe you have heard of XXXX Island, its colloquial name after the Queensland beer company featured it in an advertising campaign in 2012?