Many of the islands of the Pink Sea are basically uncovered reefs. There is certainly, having said that, a group of active volcanoes just south of your Dahlak Archipelago (15° 50′ N), as well as a not too long ago extinct volcano about the island of Jabal Al-Ṭāʾir. Note: https://henryi565cqd1.bloguerosa.com/31410180/cruise-offer-secrets