The best walks and hikes around Dernish Island

Dernish Island is a tidal island, which means you can only walk to it from the mainland during low spring tides. Access is on foot from O'Connor's Island. You must be extremely careful and check tide times before you go, as the tide comes in very quickly.

No, there are no officially marked or manicured trails on the island. Part of the appeal of hiking here is the sense of exploration. You are free to wander across the landscape, but be mindful of the natural environment and the ruins of old farmhouses.

The best time to visit is during the summer months when the weather is more likely to be dry and the days are long. This gives you a larger window for exploring safely between the low tides. Always check the weather forecast before setting out, as conditions can change rapidly on the coast.

While the island is open, it is an important habitat for ground-nesting birds like lapwing and curlew, as well as grazing livestock. If you bring a dog, it is critical to keep it on a lead at all times to protect the local wildlife and farm animals.

Dernish Island is a designated Area of Special Scientific Interest. It's a fantastic spot for birdwatchers, with high densities of breeding waders like lapwing, redshank, and snipe. You might also spot seals in the surrounding waters and a variety of wildflowers, including marsh stitchwort and carnation sedge, in the grasslands.

Yes, the island was once inhabited, and you can explore the ruins of the farmhouses where several families used to live. These abandoned buildings offer a poignant glimpse into the island's past and add a layer of historical interest to your walk.

Since there are no set paths, you can create your own circular route by walking along the island's coastline. This allows you to experience the varied shoreline and enjoy panoramic views of Ben Bulben, Donegal Bay, and Classiebawn Castle. Just remember to keep track of your location and the tides.

Parking is limited. Visitors typically find parking near Milk Harbour, which serves as the main access point for the crossing to O'Connor's Island and then on to Dernish. Please park considerately and do not block any access ways.

Given the tidal access and lack of facilities, preparation is key. You should bring:

• Waterproof boots: Essential for the tidal crossing and potentially boggy terrain.
• Food and water: There are no shops or cafes on the island.
• A tide timetable: This is non-negotiable for a safe crossing.
• A fully charged phone: For navigation and in case of emergencies.
• Waterproofs and extra layers: The coastal weather can change suddenly.

The terrain itself is relatively flat to gently hilly, making the walking itself not overly strenuous. The main challenge comes from the logistics of the tidal crossing and navigating the unmarked, sometimes boggy, landscape. The hikes are suitable for those with some experience in cross-country walking.

The area is highly rated by the komoot community. Hikers often praise the unique experience of walking to a tidal island, the sense of wildness, and the stunning coastal views. The peaceful atmosphere and historical ruins are also frequently mentioned as highlights.

While the Dernish Island crossing can be an adventure, for a more straightforward and accessible family walk, consider the Crom Estate loop. It's a gentle 4-km (2.5-mi) trail through parkland that is suitable for all ages.