Castle Tioram sits on a rocky outcrop in Loch Moidart, and it is one of Scotland's most atmospheric monuments. You can reach it via a single-track lane and causeway at the end, although the drive favours the brave, it is a great walk whatever the weather, with easy parking at the end of an access road. 

There is no cafe there though so time your visit between meals! Once you're there, you can take a short walk along the beach to the causeway to the castle. Not fully open to the public, it still makes a fantastic walk to see it up close and enjoy the views around it.