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Three days are enough to understand the rhythm of Alonissos if you resist the temptation to overfill them. Build each day around one main idea—village, coast, protected sea—and leave generous gaps for swimming and long meals.

Day 1 — Patitiri, first swim and Old Alonissos

• Morning: arrive in Patitiri, settle in and walk the harbour.
• Afternoon: choose an easy nearby swim at Rousoum Gialos or another accessible cove.
• Evening: head to Old Alonissos before sunset and stay for dinner.

Day 2 — East-coast coves

Make this your swimming day. Start early with Kokkinokastro, Leftos Gialos or Chrisi Milia, then continue north only if you still want to move. The best version of the day usually involves fewer stops and a longer lunch.

Day 3 — Into the Marine Park

Book a responsible boat excursion or diving experience and spend the day understanding the protected archipelago. The point is not to chase wildlife sightings; it is to experience the scale and quiet of the marine landscape.

Where to base yourself

• Patitiri: easiest for ferries, buses and boat departures.
• Old Alonissos: strongest evening atmosphere and village character.
• Steni Vala: quieter marina feel and convenient for the northeast coast.
• Rousoum Gialos: useful compromise between a swimmable bay and access to Patitiri.

One rule for the whole trip

Do less each day than you think you should. Alonissos rewards time spent in one place far more than constant movement.

Old Alonissos—often simply called Chora—is one of those places that becomes more atmospheric as the day cools. The village sits high above the sea, with stone lanes, restored houses, small shops, terraces and sudden views opening between rooftops.

Arrive before sunset

Give yourself at least an hour before sunset. That is enough time to wander uphill, find a viewpoint and let the village reveal itself without following a strict route.

Walk without a checklist

The pleasure of Chora is in the details: old stonework, blue doors, small courtyards, bougainvillea, cats sleeping in doorways and glimpses of the Aegean. The lanes are compact enough that getting slightly lost is part of the experience.

Dinner after the light changes

Stay after sunset rather than rushing back down. The atmosphere shifts as tables fill, lights come on and the lanes become a social space. Choose a terrace or a quieter side street depending on whether you want views or intimacy.

What to combine with Chora

• A late-afternoon swim at Megalos or Mikros Mourtias.
• A sunset walk around the village edge.
• Local pie, seafood or shared meze for dinner.
• A final slow walk through the lanes before heading back.

Blue Alonissos tip: Wear comfortable shoes. The beauty of the village is in walking it slowly, and some of the lanes are uneven.

The National Marine Park of Alonissos and Northern Sporades is the defining natural landscape of the island. It covers Alonissos together with surrounding islands, islets and extensive protected waters, combining wildlife, archaeology, traditional maritime culture and some of the clearest sea in the Sporades.

What makes the park special

The park was created to protect a large marine ecosystem rather than a single attraction. Its waters support the Mediterranean monk seal Monachus monachus, seabirds, fish and fragile coastal habitats. The experience is therefore as much about observing responsibly as it is about sightseeing.

The islands beyond Alonissos

Peristera, Kyra Panagia, Psathoura, Piperi, Skantzoura and Gioura are among the larger islands within the protected area, together with numerous smaller islets and rocky outcrops. Access rules vary by zone, so always follow current park guidance and your licensed operator’s instructions.

The Peristera shipwreck

One of the park’s most remarkable cultural sites lies underwater near Peristera. The classical-era shipwreck, carrying thousands of amphorae, is open to recreational divers under controlled conditions through authorized diving operations.

How to visit well

• Choose licensed local boat and diving operators.
• Keep a respectful distance from seals and other wildlife.
• Never chase, feed or attempt to photograph animals at close range.
• Follow restrictions on anchoring, fishing and access to sensitive zones.
• Carry reusable water bottles and take all waste back with you.

A good first day on the water

For a first visit, choose a full- or half-day excursion with a small number of stops. A slower route gives more time to understand the geography of the archipelago and makes the day feel less like a checklist.

Alonissos is an island for people who prefer to linger. Its beaches are varied—fine pebbles, pale sand, red cliffs, olive groves and pine forest—but the common thread is remarkably clear water and a landscape that still feels closely tied to nature.

1. Agios Dimitrios — the iconic curve

Agios Dimitrios is one of the island’s most recognizable beaches, shaped in a long, elegant curve. It works well for a long swim day because there is room to spread out and the water stays visually striking from almost every angle.

2. Kokkinokastro — red cliffs and deep colour

Kokkinokastro is one of the island’s most dramatic coastal landscapes. The red-toned cliff gives the bay a completely different character from the greener coves nearby, especially in the softer light later in the day.

3. Leftos Gialos — olive trees by the sea

Leftos Gialos combines clear water with an old olive-grove setting and an easy-going lunch stop. It is a good choice when you want swimming and food without turning the day into a long drive.

4. Chrisi Milia — soft entry and easy summer rhythm

Chrisi Milia is among the island’s better-known beaches and has a gentler feel than some of the rockier coves. It suits families and visitors looking for an easier, more relaxed swimming day.

5–8. Milia, Megalos Mourtias, Mikros Mourtias and Tzortzi Gialos

These four complete a useful first-time beach circuit: Milia for the classic pine-to-sea landscape; Megalos Mourtias for a sheltered feel below the Old Village; Mikros Mourtias for a smaller-scale swim; and Tzortzi Gialos for a greener, more intimate cove.

How to plan the day

• Start early for calmer water and easier parking.
• Choose two beaches rather than trying to visit six.
• Carry water, sun protection and footwear suitable for pebbles.
• Leave no litter and avoid removing stones, shells or plants.
• Check local access and wind conditions before setting out.

Blue Alonissos tip: Pair one morning beach with a long lunch and a second late-afternoon swim. The island feels much better when the schedule stays light.