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National Marine Park · Greece

Alonnisos National Marine Park

Alonnisos National Marine Park is the first and largest marine protected area in Europe, offering pristine coastal and underwater landscapes ideal for wildlife observation and marine recreation.

National Marine Park558,500 acres4+ Trails

Designation

National Marine Park

Total Wilderness Area

558,500 acres

Elevation / Terrain

Diverse Wilderness

Field Editorial Guide

About Alonnisos National Marine Park

Alonnisos National Marine Park is the first and largest marine protected area in Europe, offering pristine coastal and underwater landscapes ideal for wildlife observation and marine recreation.

Wilderness Landscape & Natural Heritage

Established in 1992, Alonnisos National Marine Park encompasses a vast marine area around the islands of Alonnisos, Skopelos, and surrounding islets in the Northern Sporades archipelago of Greece. It protects approximately 2,260 square kilometers of the Aegean Sea, including rare and endangered marine species such as the Mediterranean monk seal, sea turtles, dolphins, and diverse fish populations. The park’s geography features rocky coastlines, sea caves, underwater reefs, and crystal-clear waters, creating ideal habitats for wildlife and rich biodiversity. Significant terrestrial environments on the islands include pine forests, oak groves, and traditional villages, preserving cultural heritage alongside natural resources. Popular recreation activities include kayaking, snorkeling, scuba diving, boat tours to secluded beaches and caves, birdwatching, and hiking on well-marked trails with panoramic views. The park’s strict regulations limit commercial fishing and prohibit harmful activities, contributing to the recovery of key species and healthy marine ecosystems. Visitors can explore quaint coastal towns, local tavernas, and historical sites while enjoying protected beaches. The marine park is also involved in research, environmental education, and conservation campaigns, emphasizing sustainable tourism without disturbing wildlife. Its appeal lies in offering an unspoiled marine wilderness where visitors can connect closely with nature both above and below the water’s surface amid Greece’s iconic island setting.

Field Guide · National Marine Park
Adventure Destinations

Notable Destinations Near Alonnisos National Marine Park

Scenic viewpoints, outdoor landmarks, and notable points of interest within 30 miles.

Mystical Beauty of Ayion Oros★ 9.2⌖ 79 miExploring Monasteries
Ayion Oros

Mystical Beauty of Ayion Oros

Explore the serene beauty of Ayion Oros, an area steeped in history and natural splendor. Best visited by ferry, the region offers stunning hiking opportunities, unique monastery visits, and incredible birding. Ideal for adventure seekers looking for a tranquil, remote experience.

Exploring MonasteriesView Details→
Majestic Heights: The Acropolis of Athens★ 3.4⌖ 81 miWalking
Acropolis of Athens

Majestic Heights: The Acropolis of Athens

Explore the Acropolis of Athens, a iconic cultural site with stunning views. Experience walking tours and sightseeing in this historically rich area. With easy access from Athens, it's best visited in spring or fall to avoid the crowds.

Delight in Delphi★ 8.5⌖ 88 miExploring Ancient Ruins
Delphi

Delight in Delphi

Visit the iconic Delphi Archaeological Site in Greece, suitable for adventure seekers and photographers alike. Explore a range of temples and theaters, bask in the stunning views of Mount Parnassus, and uncover historical insights. Best in spring or fall to avoid busier summer crowds.

Exploring Ancient RuinsView Details→
Muses Plateau: Mountain Majesty Near Litochoro, Greece★ 7.8⌖ 105 miHiking
Muses Plateau

Muses Plateau: Mountain Majesty Near Litochoro, Greece

Muses Plateau near Litochoro offers moderate hiking with expansive views of Mount Olympus and surrounding forests. Accessible by a short drive, it’s great for hiking, climbing, and wildlife viewing. Visit late spring to early autumn for the best experience and stunning natural scenery.

Majestic Mount Olympus★ 9.2⌖ 105 miHiking
Mount Olympus

Majestic Mount Olympus

Explore Mount Olympus, Greece's highest peak, with trails ranging from challenging hikes to historical ruins. Enjoy stunning views and diverse ecosystems. Best explored in spring and fall, Olympus is perfect for adventure seekers and nature enthusiasts.

Meteora: Greece's Majestic Rock Formations★ 9.5⌖ 127 miSightseeing
Meteora

Meteora: Greece's Majestic Rock Formations

Explore the impressive rock formations of Meteora near Kalabaka, Greece. Known for its unique geological structures and ancient perched monasteries, it's a photographer's haven. Visit during spring and fall for hiking and breathtaking views amidst historical settings.

SightseeingView Details→

Key Wilderness Highlights

✦ Mediterranean monk seal conservation sites✦ Underwater caves and pristine reefs for diving✦ Scenic hiking trails with panoramic views of the Aegean Sea✦ Traditional fishing villages offering cultural experiences
Wilderness Recreation

Outdoor Adventures in Alonnisos National Marine Park

Explore curated guides for top outdoor sports, trail networks, and wilderness activities.

Park Recreation

Hiking

Available in Alonnisos National Marine Park
Park Recreation

Wildlife Viewing

Available in Alonnisos National Marine Park
Park Recreation

Scuba Diving

Available in Alonnisos National Marine Park
Park Recreation

Snorkeling

Available in Alonnisos National Marine Park
Park Recreation

Kayaking

Available in Alonnisos National Marine Park
Park Recreation

Boating

Available in Alonnisos National Marine Park
Park Recreation

Photography

Available in Alonnisos National Marine Park
Park Recreation

Birdwatching

Available in Alonnisos National Marine Park
The Ranger Station

Visitor Logistics & Essential Planning

Everything you need to know about entrance passes, seasons, visitor centers, road transit, and wildlife safety in Alonnisos National Marine Park.

Passes & Fees

Entrance Requirements & Interagency Passes

Free access to the park but permits required for diving and certain guided tours; regulations enforced to protect wildlife.

Wilderness Checklist

Carry paper topographic map & compass in remote zones.
Store all food and scented items in approved bear canisters.
Check wildfire / smoke advisories before backcountry departure.
Pack out everything you pack in (Leave No Trace).
Adventure Basecamps

Gateway Towns Near Alonnisos National Marine Park

Stay, dine, and gear up in these mountain towns and scenic basecamps surrounding the park.

Alonnisos
⌖ 2.61 miles
Gateway Basecamp

Alonnisos, Thessaly

A tranquil Aegean island offering pristine nature, crystal-clear waters, and abundant wildlife, perfect for outdoor enthusiasts seeking sea and land adventures.

Late Spring to Early FallExplore Town
Alonnisos
⌖ 2.61 miles
Gateway Basecamp

Alonnisos, Greece

A serene Aegean island offering pristine natural beauty, rich Mediterranean landscapes, and a peaceful atmosphere perfect for outdoor enthusiasts seeking sea and land adventures.

Late spring to early autumn (May to October)Explore Town
Alonissos
⌖ 2.61 miles
Gateway Basecamp

Alonissos, Thessaly

A serene Aegean island town known for crystal-clear waters, rich marine life, and quiet natural beauty that draws outdoor lovers seeking sea and land adventures.

Late Spring to Early FallExplore Town
Alonissos
⌖ 2.61 miles
Gateway Basecamp

Alonissos, Greece

A peaceful island retreat that combines rugged landscapes, pristine marine environments, and authentic Greek island culture for outdoor enthusiasts.

Late Spring to Early Fall (May to October)Explore Town
Skopelos Town
⌖ 8.72 miles
Gateway Basecamp

Skopelos Town, Thessaly

A charming coastal town offering a blend of island hiking, water sports, and cultural exploration amid lush landscapes and Aegean Sea views.

Late Spring to Early FallExplore Town
Skopelos
⌖ 8.72 miles
Gateway Basecamp

Skopelos, Thessaly

A lush, green island offering serene beaches, forested hills, and clear waters for a tranquil yet active outdoor escape.

Late Spring to Early FallExplore Town
Expert-Led Wilderness Expeditions

Guided Experiences in Alonnisos National Marine Park

Explore scenic backcountry routes and epic wilderness adventures with certified local mountain guides, naturalists, and outfitters.

12 bookable experiences

Availability, pricing, meeting details, and fulfillment are provided by the applicable operator or booking partner.