Althea Beach, Koropi: A Stone Stairway to a Small Cove Below Mount Voros

Greece | Althea | Kropia (Koropi), East Attica

The settlement of Althea sits at the foot of Mount Voros, just past the church of Agia Marina on the coastal road toward Sounio, and the beach that shares its name is reached the same way every account of it describes: down a flight of stone steps cut into the cliff. The descent is short but warrants attention — the rocks near the bottom can be slippery, and proper shoes make more sense than flip-flops for the last stretch.

What waits at the bottom is a small, enclosed cove, sand mixed with fine pebbles, water that stays shallow close to shore. The defining feature of the view is the islet of Dounis, sitting just offshore and close enough, with water shallow enough, that I waded out to it rather than swimming. There is nothing built on the sand itself — no rented sunbeds, no kiosk, no shade beyond what the surrounding rock offers in the late afternoon. I brought my own umbrella, water, and food, and was glad of it, since the nearest taverna sits roughly a kilometre back up the road.

Despite the lack of facilities, Althea draws a steady stream of visitors through the summer, largely because of how little distance separates it from central Athens. Arriving early on a weekday morning is the difference between having the cove largely to oneself and competing for the limited flat ground once the day gets underway.

Getting There: The 35th Kilometre of the Athens-Sounio Road, or Metro Plus Bus 122

By car, the route follows Leoforos Poseidonos south toward Sounio. The turn comes shortly after the church of Agia Marina, marked by a sign for the Althea settlement, and arrives without much warning, so slowing down in advance helps. A small parking area sits at the top of the stairs, limited enough in capacity that arriving before ten in the morning on a weekend is worth the early start.

Without a car, the Red Line of the Metro to Argyroupoli, followed by Bus 122, reaches the Kekropos stop a short walk from the settlement. The orange KTEL bus on the Athens–Sounio route, departing from Pedion tou Areos or Syntagma, also stops here on request. The whole journey from central Athens, by either road or public transport, takes roughly thirty-five minutes to an hour depending on traffic and connections.

The Beach: Sand and Pebble, a Gentle Slope, the Islet of Dounis Offshore

The cove is small — no more than 100 metres by most measurements — which is part of why it fills quickly once the morning passes. The slope into the water is gentle enough that I didn’t need water shoes once past the stairs themselves, and the clarity of the water held up even with a reasonable number of people in it by midday.

Dounis, the small islet visible from the shore, is the specific landmark that gives Althea its character beyond the cove itself — close enough to reach on foot through the shallows on a calm day, and a natural turning point for anyone wanting to extend a short swim into something longer.

Althea Beach, at the foot of Mount Voros near the 35th kilometre of the Athens–Sounio road, is a small, unorganised cove reached by a stone stairway, with sand and fine pebbles, a gentle entry, and the islet of Dounis visible and reachable by wading offshore. No facilities exist on the sand, so food, water, and shade need to be brought in advance. Roughly thirty-five minutes from central Athens by car, or by Metro to Argyroupoli and Bus 122 to the Kekropos stop.

Watch for the sign just after Agia Marina church. Take the stairs carefully. Bring everything you need before you start down.