It’s about 10km to the pub, but the last 3-4 km is along easier track. There are other bits you could throw in to make it a longer day, including a higher start by carrying past the Chalamain Gap.
Loads of other stuff in the area too if you’re wanting to make a weekend of it.
If you want a trail centre then Golspie claims to have the longest singletrack descent in the UK at 7km. That’s where we were going when I took these photos last month.
[url=https://flic.kr/p/T4CwDD]P1030775[/url] by Colin Cadden, on Flickr
[url=https://flic.kr/p/T4CtiR]P1030780[/url] by Colin Cadden, on Flickr
[url=https://flic.kr/p/RYA66u]P1030782[/url] by Colin Cadden, on Flickr
As a teaser, this is the path from the normal high-point past Rothiemurchus Lodge
[url=https://flic.kr/p/Tg2LvP]P1030786[/url] by Colin Cadden, on Flickr