The sandy beaches up here are fantastic, from Oldshoremore to Durness, they are worth the trip alone. Most famously, there is Sandwood Bay, one of the 50 best beaches in the world says Travel magazine. We agree

The unique landscape of Sutherland is like no other part of Scotland- rugged, vast and enticing. This is the land of strange locations like the eerie Smoo Cave in Durness and of the weirdest and most captivating mountains all less than an hour away: Quinag, Suilven and Stac Pollaidh (below, left)
More locally, 20-30 minutes drive, you have the trio of Stack, Foinaven, and the magnificent Arkle (above, right)
You have nearby  the Rhiconich Hotel and the Kinlochbervie Hotel, as well as the Old School Restaurant. You can visit the wonderful bird sanctuary at Handa Island.

You can take a trip to the very remote tip of Scotland, Cape Wrath

You can also enjoy bird-watching, pony-trekking and if you are very adventurous, surfing on the cold clear beaches around Durness