Visit beautiful secluded bays and beaches along the way, Marine Park of Alonissos

Exploring nature’s gifts in the Marine Park of Alonissos

Rory Collins
What a rare treat to explore the largest marine park in Europe, home to the incredibly shy monk seal and other protected wildlife, and visit beautiful secluded bays and beaches along the way.
Thrace region-id="pin-13"; Macedonia Macedonia Epirus Thessaly Sporades Ionian Islands Western Greece Central Greece Attica Peloponnese Crete Cyclades North Aegean Islands Dodecanese Dodecanese Karpathos Astypalea Tilos Sitia Faistos - Matala Patmos Kastelorizo Kasos Kos Leros Halki Rhodes Symi Sfakia - Loutro Rethymno Elounda - Agios Nikolaos Agia Galini Plakias Hersonissos - Malia Ierapetra Heraklion Chania Nisyros Ikaria Lipsi Tzia - Kea Thasos Samos Lesvos Samothrace Limnos Chios Kalymnos Paros Naxos Zante - Zakynthos Lefkada Corfu Santorini Milos Kythnos Kimolos Serifos Syros Sifnos Koufonisia Ios Kefalonia Mykonos Paxi Ithaca Arta Ioannina Tinos Parga - Sivota Metsovo Anafi Sikinos Folegandros Donousa - Iraklia - Schinoussa Antiparos Zagori Mountainous Arkadia Porto Heli - Ermioni Preveza Amorgos Andros Delos Messolongi Ancient Olympia Aegina Kythira Archea Epidavros Patra Nafplio Kardamyli Kalamata Ilia Corinth Western Messinia Kalavryta Elafonissos Nafpaktos Spetses Poros Hydra Alexandroupolis Pylos Mycenae Monemvasia Loutraki Piraeus Athens Arahova Xanthi Galaxidi Mystra - Sparta Mani Edipsos Karpenisi Delphi Chalkida Karystos Evia Skyros Vergina Alonissos Volos Karditsa Skopelos Skiathos Kastoria Thessaloniki Prespes Agios Athanasios Edessa Serres Veria Larissa - Tempi Elati - Pertouli Trikala Pelion Meteora Drama Ammouliani Mount Athos - Ouranopolis Nymfeo Mount Olympos Katerini Halkidiki Grevena Lake Kerkini Naoussa Kozani Kilkis Kavala Pella Lake Plastira
6 - 8 hrs
May - October


Greece’s first marine park offers the rare experience of exploring a protected wildlife reserve whilst also enjoying Mediterranean scenery and pristine beaches. 

If you’re a wildlife lover, you’ll be sold just on the roll call of species found in the reserve. More than 80 types of bird (from tiny warblers to cormorants, gulls and eagles) and 300 species of fish reside here, along with reptiles and other animals. And, of course, the increasingly rare Mediterranean Monk Seal (so-called because of its love of isolation), for which the park is best known.

Around 10% of the estimated 500-600 Monk Seals (Monachus-Monachus) left in the wild live in the sea caves and along the rocky shorelines of the park’s islands. They’re amongst the biggest seals in the world and live to 35-40 years old, but they breed only once a year and seeing them is a very rare treat. More common are dolphins (striped and bottlenose).

But to take a boat trip around the marine park’s 6 islands (excluding Alonissos) and more than 20 islets isn’t just about seeing the wildlife. It’s about swimming in beautifully clear water and even going ashore to visit monuments dating from Classical to Byzantine times. 

Read More Read Less


Your itinerary depends on which boat trip you choose, but your experience will include some of the following islands:

Kyra Panagia

The largest of the islands, this is believed to be where Ancient Alonissos was located. There are two beautiful bays, Agios Petros and Planitis (to the south and north), where some boat trips stop for a swim. And to the east is the monastery of the Virgin Mary, with wonderful views from a height of 300m. 


The second-largest island of the marine park (and closest to Alonissos) has two natural harbours, Peristeri and Vasiliko, and a number of beautiful beaches. A 5th century BC shipwreck, with more 3,000 amphorae, was discovered here, confirming that the area was an important ancient trading route. 


Located between Alonissos and Skyros, Skatzoura was a stronghold in Hellenistic times and traces of rural settlements have been found here. There’s also an abandoned monastery located at the highest point, with panoramic views of the marine park. It’s an important reserve of seagulls and Eleonora’s falcons.


The northernmost island is volcanic and rocky, with flora that does not exist on other islands in the park. To the south is Mandraki, the island’s only beach, with white sand and black rocks. You can swim here but you’re not permitted to stay overnight. Before you leave, you can visit the impressive 29m tall 19th century lighthouse. Some boat trips may include stops at beaches in Alonissos, such as Leftos Gialos, Tzortzi and Milia and also Alonissos’ Blue Cave, with its impressive stalactites.

Read More Read Less

From Patitiri port (Alonissos)

  • Εxcursion boats leave from 10:00 and return around 18:30. 

To Patitiri port

  • From Votsi
    • By car or taxi: 2km (6min)
  • From Steni Vala
    • By car or taxi: 10km (20 mins)
    • By bus: In summer, there’s a bus that connects Patitiri with Steni Vala. 

Organised boat trips leave from Skiathos and Skopelos and include stops in Alonissos and some of the islands of the marine park (most often Kyra Panagia).

  • Boat excursions to the marine park operate from May to October. 
  • Tickets start from €20-30 per person.
  • All boat trips are dependent on weather conditions.

May-June and September-October are the best and quietest months to visit. 

  • Autumn
  • Spring
  • Summer
  • Winter

The full experience lasts 6-8 hours. 

The beaches visited aren’t organised and most of the islands are uninhabited (with the exception of the few inhabitants of Kyra Panagia).

You can find out more about the Alonissos Marine Park in the Alonissos Underwater Museum, including information about how to dive to Peristera island’s ancient wreck.

Make sure you have everything you need for a day in the sun:

Book your trip

All your holiday planning needs in one place, letting you book direct and benefit from official online rates


Greece’s uninhabited islands are delicate ecosystems so please help keep them in the best possible condition and leave only your footprints.

Use the bins provided or, if need be, take your rubbish with you.
Don’t remove any shells, rocks, fossils or sand from the beach.
Respect the marine life and the plants and animals on shore.
Use a refillable water bottle to try to minimise your use of plastic.
Explore your surroundings but do so carefully and avoid disrupting the flora and fauna.
Making fires on beaches is strictly forbidden.
Read More Read Less

See also

The islet of Diaporos is one of Halkidiki’s hidden gems

A boat trip to Diaporos island in Halkidiki

If you are into windsurfing or kitesurfing, Prasonisi beach in Rhodes has your name on it

Why Prasonisi is Rhodes’ No.1 water sports beach

The Greek village of Loutro in Crete, Greece

Enjoy a boat trip to postcard-pretty Loutro

Paragka beach, Mykonos

How to get the best out of beach life in Mykonos