There are several popular walking routes in the area, the most famous of which is Croagh Patrick. Historically the mountain was called Cruach Aigli (that is the Mount of the territory of Aicill). It was renamed because of its association with St Patrick and is known locally as "The Reek". The walk can be carried out any time of year and on a clear day offers a magnificent view of Clew Bay.
Old Head Forest Walk offers the visitor a more relaxed stroll, with the possibility of sightings of native wildlife such as Badgers, Otters, Pine Martins, Stoats and Foxes.
Mweelrea Mountain is another famous landmark and encompasses part of the walk "The Western Way", it is a difficult climb and can be approached from either side. The climb is well worth the effort as you will be rewarded with a panoramic view of Killary including Inishturk and Inishbofin, carrying on to the Maumturk and Twelve Pin mountains.
Ashleigh Falls on the Erriff river is another beautiful scene, the walk from Louisburgh to Ashleigh is entirely different to the mountains, but nonetheless, spectacular. It is about 10 miles long and takes you through the Delphi Valley, Doolough, which is surrounded by mountains, sheltered inlets, rivers and lakes.
Take the short drive from Louisburgh to the town of Westport, park up your car and sample the envigorating walk, jog or cycle along the The Great Western Greenway, Ireland's longest off-road walking / cycle track. The Great Western Greenway is a unique 42km route stretching from Westport through Newport, Mulranny and on to Achill. Walkers, cyclists and joggers can traverse the Greenway at their own pace and can complete as much or as little of the 42km as they wish.
Bike hire available in all the above towns.