The Peak Sanctuary that was dedicated to Hermes and Aphrodite is located at position Krya Vrissi, 5 km northeast of Kato Simi, and is the most important archaeological site in the province of Viannos.
The sanctuary was founded around 2000 BC and worship continued until the Roman period. The position is identified with the Holy Mountain (Ieron Oros), according to Ptolemy, that was situated between the ancient towns of Tsoutsouras and Ierapytna.
Findings from the Sanctuary are exhibited at the Archaeological Museum of Heraklion. The site can be visited by prior arrangement with the guardian.