Inchree, about 12 miles south of Fort William on the A82 is a great spot to find native British red squirrels which are an endangered species in the UK due to the arrival 150 years or so ago of the grey squirrel. Grey squirrels are invasive and as a result tend to push red squirrels out of their natural habitat. Thankfully the grey squirrel has managed to gain a foothold in Scotland (and one or two other places in the UK) and so our native species of squirrel is still doing well.
A visit to Inchree will enable you to see them at close quarters, as long as you are quiet. Just park in the car park and a few paces away is an area that is used as a feeding and viewing station for the squirrels so you can get some good shots.
Also worth visiting are the falls at Inchree which can be viewed from a vantage point close by. You can enjoy a short walk through the forest and take in the falls and the great view from the top.