Nav puzzle 9

This puzzle is about being a little creative with your thinking.

Say you were stood on Bont Fawr in Dolgelllau [SH 7285 1799] and you wanted to get to the Pub marked in Lea Cross Bridge [SJ 4204 0831] (it's actually a Tandoori restaurant).

Without using wheels, what is the shortest distance you have to travel on land to complete the journey?

**EDIT AT 15:50 - 14.5.20 to add without wheels or any kind of wings/lighter than air contraptions :-D**