Gosh there are so many, but top for me would have to be Lang Clodie Wick.
The route I would take is over Ronas hill 450M to Stonga Banks (second favourite spot) which are 230M cliffs plunging to a stunning pink granite beach, with grand offshore, Cathedral like, stacks. Then follow the cliffs to Lang Clodie Wick. Sit there and watch the waterfalls pour over the 70M cliffs. the first time I was there I spent time watching a Basking Shark feed in the bay. I would then walk back through the hills past the numerous Lochs. Keeping an eye out for my favourites the Hares, Golden plovers, Red Throated Divers and our snowy Owls. this is about a twelve mile, trackless, round trip and one to be done slowly to savour.