The name Portumna derives from the Irish Port Omna, meaning the landing place of the oak tree. Portumna Forest Park was acquired in 1948 and covers almost 450 hectares. It was formerly owned by the Clanrickarde family. There is an old abbey, now under the care of the Office of Public Works (OPW), within the Park which dates back to the 15th century. The castle nearby, on which considerable restoration work has been carried out by the OPW, dates back to the 17th century and was the seat of the Earl of Clanrickarde. Scattered throughout the coniferous woodland there are occasional patches of semi-natural woodland which tend to be dominated by ash and beech with silver birch frequent along the lakeshore. A notable feature of the park is the presence of occasional individuals of Yew and Juniper in open woodland along the lakeshore. Perhaps the most noteworthy animal species of the park is the red squirrel which is frequently encountered in woodland areas. There is a large population of Fallow deer in the Park and other animal species include fox and badger. A recent visitor is the white-tailed sea eagle that has nested and raised chicks on an island close to the forest park. Walk: There are 4 walking trails of varying distances, one is to multi-access standard. Mountain Biking: There are 2 mountain bike trails; both open and flowing with gentle gradients through beautiful woodland and along the lake shores. These are 'easy' grade and are suitable for almost all riders. Family cycling: The inner loop is 1.5kms long and with a tarred surface, it is ideal for teaching kids to cycle and for all range of bikes - toy bikes, tag-a-longs, and child seats. Leisure cycling: There is now a loop that connects to the town along forest roads with smooth and compact surfaces. Leave the car park and follow the family-friendly route bringing you down to Castle Harbour and into the town. Orienteering: Adult course. Wheelo: One wheelchair orienteering course. Permanent Orienteering courses: There are 3 courses to suit primary/secondary schools and adults. Birdwatching: From the new bird hide near the viewing platform.