If you think a sculpture is the result of the material used, the process and the artists technique and style, add a new items to this list: the acting of environment and time on it. The Underwater Sculpture Gallery shows beautiful images of an underwater sculpture park, created by Jason Taylor in Grenada.

The sculptures highlight ecological processes whilst exploring the intricate relationships between modern art and the environment. By using sculptures to create artificial reefs, the artist’s interventions promote hope and recovery, and underline our need to understand and protect the natural world. [...]
The sculptures are sited in clear shallow waters to afford easy access by divers, snorkellers and those in glass-bottomed boats. Viewers are invited to discover the beauty of our underwater planet and to appreciate the processes of reef evolution.