The small islet of Telendos is connected by sea to nearby Kalymnos (900 metres away), with many daily crossings from the small port of Myrties (about 10 minutes). Tickets are purchased at the port.
To reach Telendos, first get to Kalymnos, which has a domestic airport (flights from Athens and Rhodes) and ferry connections from Piraeus and other Dodecanese islands.
Connections are more frequent during the summer season.