[3] It is the site of Nantlle Vale F.C., which used to be managed by the professional wrestler and promoter Orig Williams, better known by his ring name of "El Bandito".

The cycle path Lôn Eifion passes near the village, following the route of the former Carnarvonshire Railway, which ran from Caernarfon to Afon Wen and closed in 1964.

Penygroes lies by the edge of Lord Newborough's former estate at Glynllifon, from which several medieval legends have emanated.

The character Lleu Llaw Gyffes, who features in the ages-old legends of the Mabinogi (sometimes inaccurately referred to as the Mabinogion), was said to have lived in the area.

[6][7] Pen-y-groes is the name of the electoral ward which covers the village and elects a county councillor to Gwynedd Council.