The most northerly county on the Scottish Mainland. Duncansby Head is the most northerly point as you look out to sea at the Stacks of Duncansby.
The North-east tip of Scotland at the famous John o Groats is often the starting point for the long distance walk (874 miles - 1,407 km) to Lands End, Cornwall at the opposite end of the UK.
From Scrabster and Gill's Bay there are the ferries to Orkney.
Thurso is the northernmost town on the British mainland
John o Groats takes its name from Jan de Groote, a Dutchman who obtained a grant for the ferry from the Scottish mainland to Orkney (acquired from Norway, by James IV, King of Scots, in 1496).
Peatland and Wetland: Straddling the two counties of Caithness and Sutherland is an area called The Flow Country it is the largest expanse of blanket bog in Europe, and covering about 4,000 square kilometres (1500 mile²). wikipedia.org/wiki/Flow_Country