The Temple of Poseidon is built in a prominent position, at the southern end of Attica. Poseidon was considered, by the ancient Greeks, the god of sea.

Built in 440BC, it is an important monument of antiquity and attraction for hundreds of tourists every year.

Σε απόσταση αναπνοής από τον Χάρακα (0.85 nm) μια μικρή και όμορφη νησίδα προσφέρεται για μοναδικές βουτιές.

3.5 nm από τον Χάρακα, μία νησίδα μοναδικού φυσικού κάλλους.
The island is a habitat of the European programme "Corine".

This island has a rich and interesting history from ancient times till nowadays. Makronisos belongs in the western part of Cyclades and is located approximately 6 nm far from Harakas beach. The island was a place of exile for thousands of citizens from 1947 to 1958.

Makronisos was declared archaeological site, in 2019 by the Ministry of Culture.