At the cape **Posidi**, on the western edge of **Kassandra**, next to the sandy tongue that enters the sea, lies one of the most important sanctuaries of Halkidiki: the **sanctuary of Poseidon**, considered the **oldest known sanctuary of the god** in the Greek world. The area belonged to the territory of ancient **Mendi**, a city famous in antiquity for its wine.
Excavations revealed successive phases of worship spanning over half a millennium:
The **oldest structure** dates back to the **Geometric period (11th-10th century BC)**
Other buildings of the sanctuary belong to the **7th-6th century BC**
The main temple, the cella, dates to the **5th century BC**
The continuous use of the site for so many centuries shows how important the sanctuary was for sailors passing through the Thermaic Gulf.
The **foundations of the sanctuary** right next to the wave
The characteristic **lighthouse of Posidi**, a landmark of the cape
The famous **sandy tongue** with sea on both sides
One of the most beautiful **sunsets** in Halkidiki
Access to the site is **free**
Go in the late afternoon: combine the sanctuary, the lighthouse, and the sunset
Nearby there are organized beaches and taverns with fresh fish
It can be combined with **Kalandra**, **Nea Skioni**, and **Afitos**
The Sanctuary of Poseidon at Posidi activity takes place in Ποσείδι, Κασσάνδρα, Kassandra, Halkidiki.
The price for Sanctuary of Poseidon at Posidi is Free.
The Sanctuary of Poseidon at Posidi activity lasts 1h.