Leave the car near the Dufftown Distillery and follow the sign to the food path towards Giant Chair. You will cross the Dullan and turn right. It's a lovely walk, perfect to walk the dogs. There are several benches on the way to give you the chance to relax.
This cache is near a intersting spot - have a look yourself.
For the cache you are looking for a small black film canister.
Congratulation to Alo Fox and Scoobydoopoo for beeing the FTF here ;-)