From Brecon take the B4520 signposted Upper Chapel. 
Stay on that road for 4.5 miles to the village of Pwllgloyw. 
Go past the newly renovated pub called The Pwllgloyw Arms on the left hand side. 
After the new houses on the left and 30 mile hour limit sign, take the 2nd left lane going up the hill and sign posted "Alltybrain". 
At the end of the lane you come into the farmyard where there is plenty of parking space.

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