Epanomi,near the sea and Thessaloniki is a place at any time of the year. After relax to Epanomi , go to Athens and use www.ferryhopper.com for Greek Islands :-) My motto is : " A guest never forgets the host who had treated him kindly." Homer (~8th century BC), Greek poet .
Epanomi is a village from the ancient years and currently it has 8000 local. From the beach you can also enjoy the view of mountain Olympus( Greek mythology ) when it is visible . Is not a tourist place . The sea is 3-4 km from the village and it has 40km of sandy beaches for free beach swimming. Some of the beaches are well organized and reachable with public transport (ticket is 1.10€ euro) .There are also various cafes and taverns near the beaches.
Car is not necessary but it can be very useful to move around and it is necesary if you want to visit other place such as Dion , Vergina ,Meteora , Athos [Saint Mountain],Chalkidiki etc.
Our house is at the center of the village . The bus station from the house for the public bus to Thessaloniki is two minutes on foot and the ticket is 1.20€. It is my second house next to the one where we use to live . We will share the same garden if we will do a non simultaneous exchange and we will be not at our holidays. Home has 3 bedrooms , small living room, a big kitchen, hall, bathroom, balcony and a nice garden. Unfortunately, don't have a dishwasher. I have private parking . Our home is non-smoking. However, you can smoke outside in our garden. The house was built around 1940 and renovated several times. Last renovation was in July 2009. It is a detached house and right next to it there is another house (not owned by me) that is uninhabited. Home exchange is indeed a mutual friendly thing.
Any proposals are welcome .

Useful Websites:

Ferry Schedules & Tickets far away from the others : www.ferryhopper.com

          Public Transport for Epanomi-Thessaloniki :       www.oasth.gr
          Inter-region Buses:    www.ktelmacedonia.gr/en/home       
          Inter-region Buses for Chalkidiki:    www.ktel-chalkidikis.gr

Airlines : www.aegeanair.com www.ryanair.com www.ellinair.com

          The Official website of the Greek Tourism Organisation  www.visitgreece.gr