Following the rugged coastline northwest of Clifden brings you to the tiny village of Claddaghduff (An Cladach Dubh), which is signposted off the road to Cleggan. If you turn west here down by the Catholic church, you will come out on Omey Strand, where horse races take place in summer.
At low tide you can drive or walk across the sand to Omey Island, a low islet of rock, grass and sand. Swimming is possible at its white sandy beaches, and walking is popular. Now uninhabited, there's a handful of abandoned houses. Omey's last resident, professional stuntman Pascal Whelan (whose film credits include Butch Cassidy and the Sundance Kid and Crocodile Dundee), died in 2017; he is buried in the island's cemetery. Tide times are displayed on the noticeboard in the car park; the route is marked by blue road signs bearing white arrows. Don't be tempted to cross between half tide and high tide, or if there's water on the route. And be sure to time it so you can get back. From Clifden it's a 26km round trip.