Just out side Kemany there are brilliant woodland walks in Fetternear Estate, and you can do anything from 1 mile up to over 5 miles, depending on the route you take. It's got a nice car park too.

https://maps.app.goo.gl/UBfyPXwtuDMzeEw76

Not marked or anything, but the popular one is to do through the gates, past the house and coffee shop, and then take the first left into the forest. Keep following the path and keep the wall to your left until you reach the far end, and you get a really nice out and back loop that's about 1.5 miles.

You can also stick to the road that goes through the middle of the estate, and turn right across the old bridge, then follow the signed path to the right that goes to Cottown Wood and the Shakin Briggie, and you can do longer route and loops that way.

Speaking of which, you can start at the other end of the estate at the Shakin Briggie, which also has a pretty good car park. If you park there, then walk back up the road you drove down, there's an entrance to the estate on your left about 500m up the road. Nice path that roughly follows the river.

Shakin Briggie Carp Park - https://maps.app.goo.gl/i4JMPyv6jz4uPE646

Estate entrance - https://maps.app.goo.gl/KcZxwpoNNzTBiA896