Agios Sostis Beach, located on the island of Kythnos, Greece, is a serene and isolated destination known for its natural beauty. The beach is named after the nearby chapel of Agios Sostis and offers a tranquil atmosphere with pebbles and sand. It is a long beach, providing ample space for visitors, and features a small rock peninsula that divides it into two separate areas. The beach is not organized, so visitors must come prepared with necessities. The chapel overlooking the beach adds a picturesque touch, offering stunning views of the clear blue waters and surrounding landscape.
Agios Sostis Beach is ideal for those seeking privacy and peace, away from the more crowded beaches like Kolonna and Loutra. Its orientation towards the southeast protects it from the strong Aegean winds, making it a comfortable spot for relaxation. The beach attracts scuba diving enthusiasts due to its crystal-clear waters.
The area around Agios Sostis is dotted with small country houses, giving it a traditional Aegean feel. However, it lacks significant tourist attractions nearby, though there are hiking trails offering beautiful views of the Aegean Sea.