Kalymnos

Kalymnos lived by sponge diving for centuries, sending fleets across the eastern Mediterranean, and the trade's memory fills the port town of Pothia: sponge workshops, a museum, and the tall houses of captains along the harbour. Since the late 1990s the island has acquired a second identity as a sport-climbing destination of world rank; the grey and orange limestone walls above Masouri and Armeos hold several thousand bolted routes, many on tufa formations that climbers travel from every continent to try, and the season fills the west coast villages with climbing gear rather than beach umbrellas. Between the two, the island keeps quiet coves, the fjord-like inlet of Vathys with its citrus valley, and the tiny island of Telendos across a strait, a car-free settlement under a mountain.

What you actually see

• The climbing crags - thousands of routes on tufa-streaked limestone.
• Pothia harbour - sponge workshops, captains' houses and the museum.
• Vathys - a narrow inlet leading to a valley of citrus groves.
• Telendos - a car-free islet across a strait, reached by small boat.

When to go

Spring and autumn are the climbing seasons, when temperatures suit long days on rock; July and August are too hot for serious climbing but fine for swimming. Winter is quiet with reduced services.

Honest expectations

Beaches are pebble and modest; this is not a sunbathing island. In peak climbing season accommodation on the west coast books out. Sponge diving today is largely a heritage industry, and much of what is sold is imported.

Nearby

Kos lies south, Leros north; Telendos is a five-minute boat ride from Myrties.