Clew Bay

The silver world of Clew Bay: vast mountains, shimmering sands and little people with teeny-tiny smart phones!


Clew Bay has, according to tradition, 365 islands, one for every day of the year. It’s probably the most beautiful bay in Ireland, and the views of it from all around Westport are spectacular.

The biggest, Clare Island, guards the entrance to the sheltered bay and is home to 130 people. With its Blue Flag beach and many historical and archaeological sites, Clare is a must-see island for the visitor willing to take a short ferry ride.

Most of the others in the bay are are uninhabited, although a few brave souls cling to the age-old tradition of living on a small island all year round.

The islands in Clew Bay are partly drowned drumlins, which are elongated, steep-sided hills, sometimes described as whale-backed, that were formed when glaciers reshaped the landscape in the last ice age. Many of the hills on land around the bay are similar drumlins.

The bay is surrounded by some of the best Blue Flag beaches in Ireland perfect for many water sports.

Collanmore Island

Collanmore Island is near Westport and is the largest Island in the inner bay. It can be reached via Rosmoney pier, about 10 minutes drive from the centre of Westport. There is the only one resident on the island and there are no roads, no cars – even the postman arrives by boat.

The island is the home of The Adventure Islands which offers dinghy sailingsea kayakingstand-up paddle boarding, wake boarding, water skiing, and Sea Safari boat trips. The waters around the island are a safe haven for beginners, and more experienced sea sport adventurers will be completely at home with plenty of secure but challenging open spaces and great winds.


Clew Bay was the focus of the O’Malley family possessions in the Middle Ages, and is associated especially with Grace O’Malley or Granuaile. She is known as the Pirate Queen who commanded a fleet of ships and maintained several castles, including those on Clare Island, Achill and Rockfleet.

During the Irish Civil War in July 1922, 400 Free State troops were landed at Clew Bay to take Westport and Castlebar from Anti-Treaty forces.