Isla Grosa
| Geography | |
|---|---|
| Location | Mediterranean Sea |
| Archipelago | Islas e Islotes del Litoral Mediterráneo |
| Area | 17.5 ha (43 acres) |
| Length | 90 m (300 ft) |
| Administration | |
| Subdivision | Region of Murcia |
| Demographics | |
| Population | 0 |
Isla Grosa is an island in the Mediterranean Sea, belonging to the municipality of San Javier in the Region of Murcia, at a distance of 2.5 km from the northern part of La Manga del Mar Menor. It has an area of 17.5 hectares and is over 90 m high.
To the east of the island there is an islet, also of volcanic origin, called El Farallón.