Folegandros, or Pholegandros, is a small island in the Cyclades.
Folegandros has 3 villages, Chora (main town), Karavostasi (port), Ano Meria
Ferries from Santorini include the Flying Cat III and takes about 45 minutes
All ferry and high speed ferry companies : schedules, connections, availability and prices, between Folegandros, other Greek islands & Piraeus port (Athens) is here 
Folegandros main town (Chora) is one of the most beautiful in Cyclades, definitely worth a visit.