The 3-star Calma Boutique Hotel Posidhonia is a stone's throw from the sand Agathopes Beach and features car rentals for guests' convenience. Featuring a restaurant and baggage storage, this Posidhonia hotel is within 10 minutes' drive of the Armeos.

The centre of Posidhonia can be reached within a 10-minute walk. The hotel places you 950 m from Komito Beach. The Church of Agios Stefanos is situated approximately 15 minutes' drive from the Calma Boutique Posidhonia. For those travelling from afar, Syros Island airport is 20 minutes' drive away.

There are 12 rooms comprising a balcony. They come with a flat-screen TV with satellite channels, as well as such comforts as ironing equipment and an air conditioner. Also, there is an individual safe, tea and coffee making equipment provided. Bathrooms have a separate toilet and a shower, along with shower caps and bath sheets.

A continental breakfast is available daily at the Calma Boutique. Guests can enjoy a selection of Greek dishes at Fetouris situated within easy reach of the accommodation.