Biking in Connemara
The nearest proper off-road trail is in the Derroura close to Oughterard on the N59 to Galway but it is a good 40 minute drive.
The many peninsulas and B roads of Connemara are ideal for cycling, the Connemara loop makes a great shorter spin or you can head towards Clifden via the Sky road, a tough climb but fabulous views and a very welcome downhill spin into town from the viewing point. The Bog road to Roundstone is a lovely quiet, undulating road and you can take the Coast road back via Ballyconeely.
For more distance the louisburgh route to Westport is one of the most scenic roads in the country but to do a loop would mean spending 40/50km on the N59 which can be busy in the Summer months. Because of the options to both sides of the House it is almost always possible to plan a route that will take you out into the wind with a nice tailwind for the return journey.