The River Conwy, after which the county borough is named, lies wholly within the area: rising in Snowdonia and flowing through Llanrwst and Trefriw en route to the Irish Sea by Conwy.
The lake can be reached by car only from Trefriw in the Conwy valley, though many visitors walk there from the village or from the neighbouring lake of Llyn Geirionydd, which runs parallel to it, but a mile distant, the two being separated by Mynydd Deulyn – “mountain of the two lakes”.
The village of Trefriw (noted for its spa, first used by the Romans), is still served by the station by way of the Gower suspension footbridge over the River Conwy, a rural walk of about one mile.