🏝️ Illa Grossa
Largest island of the Columbretes volcanic archipelago, Mediterranean Spain
📌 Fast Facts
- Location: 56 km east of Castellón coast, Mediterranean Sea
- Size: Approximately 14 hectares; largest in the Columbretes archipelago
- Geology: Volcanic origin with distinctive rock formations and exposed lava
- Access: Restricted to researchers and authorized personnel only
Illa Grossa is a volcanic island in the Mediterranean Sea off eastern Spain that serves as the largest ...