Hi,
Almost all beaches are located on the east side of the island. Due to
the high cliffs the west side almost has no beaches. Best beaches we
visited there are in Kamari and Perissa, but also nice and closer is
the beach of Monolithos. I know from Thira there is a very good
connection to all parts of the island, from Oia I'm not sure, but you
can very well go from Oia to Thira. That's not very far. A good site
to check the timetables is
http://www.ktel-santorini.gr/.
Enjoy your trip to Santorini. It's GR8 !
Webmaster van
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Timo De Smedt en Eef Bellon