So you’re in Athens sightseeing or on business but are yearning wistfully for those blue seas you see on seemingly every advert, wall calendar or restaurant menu cover. Fear not – a refreshing salty dip is closer than you think. All around the coast of Attica are dozens upon dozens of beaches and swimming spots to cater to every taste, from organized, luxury options, to empty stretches of sand that will make you feel that the thrum of the city is a million miles away.
ASTIR BEACH

The ultimate luxury beach experience, Astir Beach is considered one of the top spots for a summer swim in Athens. Located in the chic southern suburb of Vouliagmeni, Astir offers a full range of high-quality services, from free WiFi across the beach, to the ability to pre-book one of the large and comfortable sun-loungers. And of course, a wide selection of coffees, ice creams, food and drink are all available.
All of this of course comes at a price – Astir is one of the relatively few beaches with an entrance fee which is about 25 euros during the week and 40 euros on the weekends per adult. But if what you are after is some pampering (as well as some fascinating people watching) then it’s worth the fee. Even despite the high price weekends can still get very busy so head there early to guarantee getting an umbrella (or prebook). The beach is open from 08:00-21:00, although you can visit the restaurant until midnight.
KAVOURI

Also located in the suburb of Vouliagmeni, Kavouri is actually a pine-tree covered peninsula studded with expensive villas. There are several sandy stretches where one can swim although the most popular is Megalo Kavouri towards the tip of the western coast which is organized with sunbeds for rent as well as free areas. As on many beaches, here you will also find many people playing ‘raketes’ or beach paddle ball (a national sport in Greece) in the open space behind the beach.
VOULIAGMENI LAKE

Not quite a beach but a rare geological formation located next to the sea. The waters of the lake are fed up by saltwater via underground currents, through the mountain (although there is still some mystery about how this occurs). Near the sun-beds the water is quite shallow although at the opposite end they sink to unknown depths. In the lake the waters are often slightly warmer than in the sea, so it is particularly popular earlier in the season. Generally peaceful and quiet, it is a good option if you want easy access to plenty of amenities without the thump of a nearby beach-bar.
BEACH OF SOUNIO

An organized beach with umbrellas and all kinds of amenities, what really sets this swimming spot apart is its fantastic view of the Temple of Poseidon that makes you feel like you are soaking up ancient Greek culture even as you sun yourself on a comfortable sun lounger. Some parts are organized while others are still free for the public. The crystal clear waters make it up for the 1 hour long drive. Keep in mind that in August, there is little parking space. The tavernas near the beach make great seafood meze dishes.
Source: greece-is.com