From Pwllheli take the Abersoch road.  At Llanbedrog turn right on to the Aberdaron road. Follow this road through Mynytho village about a mile from the village on the left, you will see a sign with Rhiw on.  Follow this road for approximately four miles until you come up a very steep hill to Rhiw village. You will then be coming downhill again on the Aberdaron road. Tryfan is on the next crossroads on the right. It has the name above the front door.

From Caernarfon, you can take the Nefyn road. You turn right, off the Pwllheli road just before you reach Llanaelhaearn. It is signposted to Nefyn and Canolfan Iaith Genedlaethol (Welsh Language Centre). From Nefyn take the Aberdaron road. You will pass through Morfa Nefyn, Edern and Tudweiliog.  At Pengroeslon go straight across for Rhiw. Take the third turning to the right and you will come out on the Rhiw to Aberdaron road, on a crossroad. Tryfan is on the right on the crossroad. The name is above the front door.