On the A55, cross the Britannia bridge onto Anglesey. (We are approx. 16 miles from the bridge). Take second exit (number 8) signed A5025 Benllech and Amlwch.
Go through Benllech and stay on A5025 turning LEFT at roundabout near Moelfre.
Go through Brynrefail and pass Dulas Garage and boatyard on your right. Continue up hill for 1.5 miles (after the garage) and take 2nd LEFT signed Gadfa, Penygraigwen, Llanerchymedd, Parc.
Follow the lane for approx 1.6 miles, going straight on at the 2 crossroads.
After the second crossroads, pass the white bungalow (Derwenfach) on the left.
The gate for Deri Fawr is on the left about 300 yards after the second crossroads.
Deri Fawr