A bright volcanic island shaped by pumice and obsidian mining.
Gyali lies between Kos and Nisyros, its white quarries and volcanic geology visible from excursion boats but its industrial areas tightly controlled.
Gyali is formed from two volcanic masses joined by a narrow isthmus. Large pumice quarries give one side a brilliant white appearance, while obsidian deposits connect the island to prehistoric toolmaking and Aegean exchange.
Mining remains active, so Gyali is not an open beach destination. The island is best viewed from the water or through a specialist geological route that respects work zones, private operations and protected remains.
Practical information
There is no standard visitor ferry. Do not enter quarry or port areas without authorisation; ask licensed operators in Nisyros or Kos about legal viewing routes.
