The Mawddach-Ardudwy Trail is a long distance walk in an area of Wales near to the western edge of Snowdonia National Park. The walk offers a stunningly diverse landscape of mountains, foothills, woodland, valleys, lakes, estuaries, impressive sand dunes and long sandy beaches. The upland landscape is crossed by important ancient trackways and is renowned for its extensive archaeological remains. These include ancient hut settlements and field systems, Neolithic chambered tombs, Iron Age hillforts, Bronze Age stone circles and standing stones. Habitations and historic sites visited during the walk include Barmouth, Mawddach Estuary, Llynnau-Cregennan, Pont Abergwynant, Dolgledr, Penmaenpool Bridge, Dolgellau, Llanelltyd, Pont Borthwnog, Coedgarth-Gell Nature Reserve, Bontddu, Bryn Castell. Cerrig Arthur Stone Circle, Llyn Erddyn, Pont-Scethin, Moelfre, Llanbedr, Bryn Cader Faner, Llyn Tecwyn Isaf, Llyn Tecwyn Uchaf, Trem-y-Garth, Glastraeth, Harlech, Mochras (Shell Island), Morfa Dyffryn National Nature Reserve and Tal-y-bont.