Martinakia

Martinakia is a small, unspoiled cove on the western coast of Kythnos, accessible either by footpath or by boat. With a Google rating of 4.1 from more than 220 visitors, it consistently draws people who want calm water and a shore without a beach bar crowd. This is the kind of beach that rewards a bit of effort to reach.

Kythnos is one of the quieter Western Cyclades, and Martinakia fits that character well. The beach sees far less traffic than the island's more famous spots like Kolona, the double-sided sandbar beach to the north, or Loutra's thermal-spring shore. If you're based in Merichas or anywhere in the island's midsection, Martinakia makes a practical half-day destination that doesn't require a hired boat — though arriving by sea adds a satisfying dimension to the visit.

The coordinates place the beach on the western flank of Kythnos, roughly south of Merichas port, which is the island's main ferry landing. The surrounding coastline here is rocky and relatively undeveloped, which explains the clarity of the water.

What to Expect

Martinakia is a compact cove rather than a long sandy strand. The water is the clear, pale blue typical of Cycladic coastline sheltered from strong open-sea swells, and the seabed transitions from sand to rock as you wade deeper. Shade is limited — the surrounding terrain is rocky scrubland typical of Kythnos — so if you plan to spend several hours here, bring an umbrella.

There are no organized facilities at Martinakia. No sunbed rentals, no beach bar, no freshwater shower. You bring what you need and take it back with you. That's part of the appeal: the beach stays clean and uncrowded precisely because it offers nothing but the sea. A small number of boats anchor offshore in calm weather, particularly in July and August, but the cove rarely fills to the point of feeling busy.

The shore itself is a mix of sand and pebble, which is common along Kythnos's more sheltered western bays. Footwear for entering the water is a good idea if you're sensitive to stones underfoot. The water clarity is consistently noted by visitors, with visibility extending well down to the seabed in calm conditions.

Wind is a factor to watch. Kythnos is exposed to the meltemi, the strong northerly summer wind that rolls through the Cyclades from late June through August. Martinakia's western orientation gives it some natural protection on days when the wind comes from the north or northeast, but south or southwest swells can make the cove rougher. Check conditions before you head out, especially if you're planning to swim with children.

How to Get There

Martinakia sits on the western coast of Kythnos at approximately 37.393°N, 24.398°E. From Merichas, the island's main port, the beach is accessible on foot via coastal path or rough track. The walk takes roughly 20–30 minutes depending on your pace and the exact path you follow from the port area. Wear proper footwear — the terrain is rocky and the paths are not always signposted.

By car or scooter, you can get closer using the road network from Merichas, though the final stretch to the cove may require walking a short distance across rocky ground. Parking is informal; there is no dedicated car park.

Arriving by boat is a straightforward option if you're chartering a vessel or joining a day-trip excursion from Merichas. The cove is calm enough in fair weather to anchor and swim off the stern. Merichas is the hub for most boat-hire activity on Kythnos.

Kythnos has limited public bus service connecting Merichas, Chora, and Loutra. There is no bus that drops passengers at Martinakia directly; a taxi or private vehicle is needed unless you're walking from Merichas.

Best Time to Visit

The Kythnos swimming season runs from late May through early October. For Martinakia specifically, the shoulder months of May, June, and September offer the best combination of warm water, manageable crowds, and calmer sea conditions. July and August are hotter and busier, and the meltemi wind can kick up in the afternoons — morning visits in high summer are noticeably more comfortable.

For the calmest water, aim to arrive in the morning before any sea breeze develops. The beach faces roughly west, so afternoon light lands directly on the water, which makes for good swimming visibility but can also mean more heat reflected off the rocks.

Kythnos as a whole is quietest in May, early June, and late September, when accommodation prices drop and the island returns to its year-round character. If you're coming specifically for uncrowded beaches, those windows are worth targeting.

Tips for Visiting

• Bring everything you need. There are no facilities at Martinakia — no water, no food, no shade structures for hire. Pack drinks, snacks, sunscreen, and an umbrella if you plan to stay more than a couple of hours.
• Wear water shoes. The shore has pebble and rock sections, particularly at the waterline, and the seabed near the edges is rocky.
• Check wind conditions before you go. The meltemi affects western Kythnos beaches more than eastern ones. If you see white caps on the water from Merichas port, Martinakia may be rough.
• Start the walk early in summer. The path from Merichas in July and August can be hot and exposed. A morning departure avoids the worst of the midday heat on the way there and back.
• Consider combining with a boat trip. Several informal boat operators in Merichas offer day trips around Kythnos's coves. Martinakia is often included as a stop, which saves the walk and lets you see several beaches in a single day.
• Leave no trace. The beach's appeal is directly tied to its cleanliness. There are no bins on site; carry your waste back to Merichas.
• Mobile signal can be patchy. Kythnos's rural coast has variable coverage. Download offline maps before you leave the port.
• The path from Merichas is not always obvious. Ask locally or use GPS navigation from the coordinates (37.3931°N, 24.3981°E) — the Google Maps link is reliable for guiding you to the trailhead from the port.

Activities and Facilities

Swimming is the main draw at Martinakia. The sheltered water and good visibility make it suitable for snorkeling as well — bring your own mask and fins since there is nowhere to rent equipment at the beach itself. The rocky sections near the cove edges attract small fish and are worth exploring with a mask.

Boat anchoring is common in the summer months. If you have access to a chartered vessel, Martinakia makes a clean, calm anchorage for a lunch stop. The cove is small enough that two or three boats can fill it during peak season, so arriving early secures the best spot.

There are no organized water sports, sun lounger rentals, or beach bars. The beach is entirely unorganized in the Greek regulatory sense, meaning access is free and open, but infrastructure is zero. This is by nature rather than neglect — the terrain does not accommodate development easily.