Which is a more interesting and feasible day-trip from Fort William:
1. Driving through the "Road-to-the Isles" (Passing through Glenfinnan [esp. Glenfinnan Viaduct because my sister is a Harry Potter fan] and, Arisaig, Morar Mallaig)
2. Visiting Eilean Donan
Please note that we plan to take the 7:00 pm train from Edinburgh to Fort William (arriving at 12 noon), and returning to Edinburgh the same day via CityLink Bus departing at 7pm So this roughly gives us 7 hours only for the day trip.