Llanberis is a village, community and electoral ward in Gwynedd, northwest Wales, on the southern bank of the lake Llyn Padarn and at the foot of Snowdon, the highest mountain in Wales. It is a centre for outdoor activities in Snowdonia, including walking, mountaineering, climbing, mountain biking and pony trekking, as well as water sports such as scuba diving. The community includes Nant Peris.