Clew Bay SAC (Special Area of Conservation) wilderness guide
Special Area of Conservation · County Mayo, Ireland

Clew Bay SAC (Special Area of Conservation)

Clew Bay SAC is a protected marine and coastal area known for its rich biodiversity and numerous small islands, offering unique opportunities for marine wildlife observation and coastal exploration.

Special Area of ConservationApproximately 17,000 acres (6,900 hectares)4+ Trails

Designation

Special Area of Conservation

Total Wilderness Area

Approximately 17,000 acres (6,900 hectares)

Elevation / Terrain

Diverse Wilderness

Field Editorial Guide

About Clew Bay SAC (Special Area of Conservation)

Clew Bay SAC is a protected marine and coastal area known for its rich biodiversity and numerous small islands, offering unique opportunities for marine wildlife observation and coastal exploration.

Wilderness Landscape & Natural Heritage

Clew Bay SAC (Special Area of Conservation) is located along the northwest coast of County Mayo, Ireland. It encompasses Clew Bay, a large bay dotted with around 365 islands, known colloquially as "the islands of Clew Bay." The SAC covers a mosaic of habitats including marine waters, seaweed beds, sandbanks, mudflats, rocky shores, and coastal areas that support a diverse array of flora and fauna. The bay is particularly important for its extensive intertidal mudflats and sandbanks which provide prime feeding grounds for migratory birds and nursery habitats for fish species. Key ecological interests include otters, harbor porpoises, seals, and notable bird species such as the common tern and peregrine falcon. Historically, Clew Bay has been influential in Irish heritage, with archaeological sites like old monastic settlements and medieval castles scattered around its coastline and islands. Visitors to the area are drawn to its serene natural beauty and opportunities for kayaking, birdwatching, hiking along the coastal routes, and island hopping by boat. The combination of rich biodiversity, scenic landscapes, and cultural landmarks makes Clew Bay SAC a cherished destination for nature lovers and outdoor enthusiasts. Conservation efforts focus on protecting the sensitive habitats and species from human disturbance and environmental pressures, supporting sustainable use and ecological research throughout the bay.

Field Guide · Special Area of Conservation
Adventure Destinations

Notable Destinations Near Clew Bay SAC (Special Area of Conservation)

Scenic viewpoints, outdoor landmarks, and notable points of interest within 60 miles.

Key Wilderness Highlights

✦ Clew Bay's unique archipelago of over 350 islands and islets✦ Diverse marine habitats including seaweed beds and sandbanks rich in ecology✦ Important wildlife sighting opportunities for seals, otters, and seabirds✦ Historical sites including Clare Island with its castle ruins and monastic remains
Wilderness Recreation

Outdoor Adventures in Clew Bay SAC (Special Area of Conservation)

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

Park Recreation

Hiking

Available in Clew Bay SAC (Special Area of Conservation)
Park Recreation

Wildlife Viewing

Available in Clew Bay SAC (Special Area of Conservation)
Park Recreation

Kayaking

Available in Clew Bay SAC (Special Area of Conservation)
Park Recreation

Photography

Available in Clew Bay SAC (Special Area of Conservation)
Park Recreation

Birdwatching

Available in Clew Bay SAC (Special Area of Conservation)
Park Recreation

Boating

Available in Clew Bay SAC (Special Area of Conservation)
Park Recreation

Fishing

Available in Clew Bay SAC (Special Area of Conservation)
Park Recreation

Cultural Heritage Tours

Available in Clew Bay SAC (Special Area of Conservation)
Park Recreation

Nature Study

Available in Clew Bay SAC (Special Area of Conservation)
Park Recreation

Scenic Drives

Available in Clew Bay SAC (Special Area of Conservation)
The Ranger Station

Visitor Logistics & Essential Planning

Everything you need to know about entrance passes, seasons, visitor centers, road transit, and wildlife safety in Clew Bay SAC (Special Area of Conservation).

Passes & Fees

Entrance Requirements & Interagency Passes

No permits required; free public access

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 Clew Bay SAC (Special Area of Conservation)

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

Louisburgh, County Mayo
⌖ 5.11 miles
Gateway Basecamp

Louisburgh, County Mayo

Louisburgh offers wild Atlantic adventures from Croagh Patrick hikes to sea kayaking and surfing on stunning beaches. Its rugged mountains, coastal waters, and peaceful town make it ideal for outdoor enthusiasts seeking authentic Irish wilderness.

Late Spring to Early Autumn
Explore Town
Westport Industrial Park, County Mayo, Ireland
⌖ 6.71 miles
Gateway Basecamp

Westport Industrial Park, County Mayo, Ireland

Westport Industrial Park offers practical access to Westport’s rich outdoor activities from hiking Croagh Patrick to paddling Clew Bay. Perfect for adventure seekers wanting proximity to natural beauty with industrial convenience.

Late Spring to Early Autumn
Explore Town
Westport Demesne, County Mayo
⌖ 7.12 miles
Gateway Basecamp

Westport Demesne, County Mayo

Westport Demesne blends history and active adventure with woodland trails, mountain bike routes, and stunning coastal kayaking nearby. Ideal for hiking, running, and nature lovers seeking a vibrant Mayo escape.

Late Spring to Early Autumn
Explore Town
Westport, County Mayo, Ireland
⌖ 7.25 miles
Gateway Basecamp

Westport, County Mayo, Ireland

Westport is a friendly coastal town in County Mayo, perfect for outdoor lovers. From hiking Croagh Patrick to cycling the Great Western Greenway and paddling Clew Bay’s shores, it offers stunning landscapes and rich adventure.

Late Spring to Early Autumn
Explore Town
Westport, County Mayo
⌖ 7.25 miles
Gateway Basecamp

Westport, County Mayo

Westport in County Mayo is a charming coastal town perfect for hikers, cyclists, and surfers. Explore the majestic Croagh Patrick, paddle through Clew Bay, or bike the scenic Great Western Greenway.

Spring and Summer
Explore Town
Newport, County Mayo
⌖ 8.59 miles
Gateway Basecamp

Newport, County Mayo

Newport in County Mayo is a gateway to wild Atlantic adventures, from hiking the Nephin Beg Mountains to kayaking Clew Bay’s island-studded waters. Perfect for those seeking tranquil landscapes and authentic outdoor experiences off the tourist trail.

Late Spring to Early Autumn
Explore Town
Expert-Led Wilderness Expeditions

Guided Experiences in Clew Bay SAC (Special Area of Conservation)

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

Clew Bay by Rib: A Private-Picnic Run to Collanmore
ADVEXPEDITION
Westport, County Mayo
Sightseeing TourADV Bookable

Clew Bay by Rib: A Private-Picnic Run to Collanmore

A 1.5-hour high-speed rib outing from Westport that threads Clew Bay’s islands, brings close wildlife views and ends with a picnic on Collanmore Island.

Sightseeing TourPT2HCertified Outfitter
Bookable OnlineBook Trip
Along the Tóchar: Brackloon & Owenwee Bog Trail in Westport Demesne
ADVEXPEDITION
Westport Demesne, County Mayo
Guided TourADV Bookable

Along the Tóchar: Brackloon & Owenwee Bog Trail in Westport Demesne

A guided, three-hour exploration of ancient oak woodland, bogland archaeology and a stretch of the Tóchar Phádraig pilgrimage route — useful for planning a concise, historically rich outing.

Guided TourPT2HCertified Outfitter
Bookable OnlineBook Trip