Discover the largest inhabited island off the coast of Donegal, Arranmore. Learn about the island's history, from its prehistoric past to its modern-day activities.

Arranmore, officially known by its Irish name, Árainn Mhór, has been inhabited since prehistoric times. The island is the largest inhabited island off the coast of Donegal and is part of the Donegal Gaeltacht, where Ulster Irish (Gaeilge Uladh) is the main Irish dialect in use.

The island is approximately 22 km2 or 8 sq mi. In Irish, it was traditionally called Árainn; the adjective mór (large) was added fairly recently. It was also sometimes called Árainn Uí Dhomhnaill, 'Aran of the O'Donnells'.

The island is twinned with Beaver Island, an island in northern Lake Michigan where a large number of former residents gathered after being evicted from Arranmore in the mid-1800s.

Learn about the island's history, from its prehistoric past to its modern-day activities. Discover the island's promontory fort at Uilinn, which dates from about 800BC.

Arranmore Island is the perfect place if you’re looking for an adventure off the beaten track. The island has a small population of approximately 400 residents but there is no shortage of activities to take part in on your trip.

Situated only a 5km walk from the ferry pier, you’ll be surrounded by spectacular views of the cliffs and the Atlantic Ocean. Bring a picnic and enjoy the views in one of the many picnic areas on route. There are steps near the lighthouse that bring you on a thrilling trip down the cliffs, if you are brave enough!

Join a walking tour of the island which will give you a great insight into the history of the island while you experience tremendous views. Cycle around the island and see many townlands with stunning lakes, mountains, and beaches to explore.

Fishing off the rocks is the perfect way to spend a relaxing summer's day. Kick back and relax with your fishing rod and you might even catch dinner.

The 15-minute ferry crossing to the island is an experience in itself. Often you will see dolphins swimming alongside the ferry, which runs every hour in peak season.