The village of Possidi is at the west side of Kassandra peninsula. It owes its name to the god Poseidon, the god of the sea. The ruins of the ancient sanctuary dedicated to God Poseidon are very close to the village. Although there is nothing worth seeing in the ruins, since there was no serious excavation project for the sanctuary, the area is very much worth visiting because of the headland and the lighthouse. Next to the sanctuary is the headland on the western side of the peninsula which was known in the ancient times as Poseidonio. The whole area belonged to the ancient city of Mendi. The lighthouse of Possidi cape was built in 1864 and is a magnificent sample of the lighthouse architecture of that era. The headland is a great place for swimming because whatever the weather you can always find there calm water to swim. It is also a nice area for sightseeing or having walk in the afternoon.
On the way to Possidi starting from Polichrono you come across the small church of Profitis Ilias hidden at the side of the road behind some trees, and after that you reach the village of Kassandrino. It is a mountain village with stone houses, famous for the local meat served in its two taverns. Most of the times I have visited Kassandrino was in the afternoon, after the beach and the swimming for a taste of the local meat in grill and souvlaki.
The trip was made by car but someone who is an experienced biker can use his bicycle and make it a road biking trip.