Location
From Caernarfon :
To reach there from Caernarfon on the A499 go forward , through Llanaelhaearn forward until you see a sing for 'Llwyndyrys' . If you reach 'Y Ffôr' you have gone to far . After reaching the small country road for LLwyndyrys keep going for about 2-3 miles . Pass a chapel , and a red kiosk . Plas is the second riht turning after the red telephone kiosk .

From Porthmadog :
Follow the A497 towards Cricieth , keep going and follow signs towards Chwilog Go through the village of Chwilog towards Y Ffôr . Turn right in Y Ffôr until you see a sign for 'Llwyndyrys.' Keep going , past a chapel and Plas is the second turning on the right after the red kiosk .