Whilst visiting Lon Las Menai, you can catch a glimpse of the Isle of Anglesey, the green stretch of coast across the turbulent waters of the Menai Straits. Opened in spring 1995, the path runs for 6.5 kilometers (4 miles) between Caernarfon and Y Felinheli.

The compacted dust path departs from the old fortified town of Caernarfon, and runs parallel with the Menai through urban areas and open countryside to the outskirts of Y Felinheli.

Located in an idyllic spot on the shores of the Menai, the sheltered village of Y Felinheli once used to be a busy port, to where slate was carried on a narrow gauge railway from the quarries at Dinorwig, and from there exported world wide.

Today the Menai Straits is much quieter and a popular sailing venue for local and visiting sailing enthusiasts. Whilst in the village, the route follows Beach Road and the High Street, before rejoining the dust path by the old station.

Lon Las Menai is part of Lon Las Cymru, route number 8 on the National Cycle Network.