Agia Marina is the main harbour on Leros, a working port on the island's east coast that sits close to the town rather than out on a remote headland, so you're rarely far from a café or taverna while you wait to board. From here it's a short hop south to Kalymnos, one of the most regularly sailed crossings in this part of the Dodecanese. The channel between the two islands is largely sheltered by the surrounding coastline, so the crossing tends to stay calmer than routes that run further out into open water, though it's always worth a glance at the forecast if the wind is up.
Because several operators cover this pair, the timetable is a genuine mix of boat types: fast catamarans that get you across quickly, and slower conventional ferries that call at other ports along the way, which suits travellers weighing up onward connections rather than a straight there-and-back. Sailings are busiest through the summer months, when the route works almost like a shuttle with departures spread across the day; outside high season the service eases back but continues to run, with operators filing their timetables in stages rather than all at once. Check the schedule box above and the month-by-month table below for the current picture.
Useful Resources for Your Greek Island Trip
- Find accommodation in Greece – hotels, apartments and villas on Booking.com
- Book tours and activities in Greece via Viator
- Find guided experiences and day trips via GetYourGuide
- Compare car hire prices in Greece via DiscoverCars