There is a delightful little island called Isla del Pirata just off the coast of Cartagena in Columbia. And just off the shore of this Pirates Island sits - very appropriately - a mermaid. map
Isla del Pirata is one of the 30 coral islands forming the Rosario Archipelago. The area has great natural beauty and has been a designated national park since 1977, with a pristine and healthy ecosystem.
Hotel Isla del Pirata is a small hotel on the island, which offers local cuisine, day tours and other activities.
References:
● http://www.isladelpiratahotel.com/hotel
● The Mermaids of Earth coffee-table book: See page 158 in the book about this sculpture.