Prehistoric Holy Island

Trefignath prehistoric burial chamber, visited on Prehistric Ynys Cybi Bike Tour, Anglesey

🚴‍♀️ 14.5 miles / 23 km
🌄 850′ / 261 m
🥪 Bring a packed lunch

This circular cycling route from Trearddur Bay takes us around Ynys Cybi or Holy Island to visit some of the island’s prehistoric sites. We visit hut circles, standing stones and an astounding trio of burial chambers, there’s plenty to amaze you on this ride!

We start by visiting twin standing stones at Penrhos Feilw, which appear to frame Mynydd y Twr or Holyhead Mountain. What was their intended purpose?

Following the coast, having cycled up the day’s most challenging section, we then arrive at Tŷ Mawr hut circles.

There’s an opportunity to park the bikes and wander through the remains of some 20 remaining hut circles of the 50 which have been recorded. These date from the late Neolithic, through the Iron Age, with some of the buildings used as late as the sixth century. Added to this, Mesolithic finds in the area show that people have inhabited the site for many thousands of years.

Look out to the Celtic sea-routes and ponder on life at this spot over the millennia.

Cycling through a prehistoric landscape

Now that the early hill-climb is complete, it’s a far easier cycle for the rest of the day. We now cross to Holy Island’s northerly coastline, overlooking the long breakwater, built to shelter the growing number of ships calling at Holyhead harbour.

We stop here for lunch at one of a number of cafes. Our route then skirts around Holyhead town to visit a couple of visible prehistoric sites on the town’s outskirts. A twisting standing stone and an enigmatic trio of tombs at Trefignath are the only visible clues to a wider prehistoric landscape revealed in a recent extensive archaeological dig.

The route has amazing seascapes and views across Anglesey towards Snowdonia!

This Guided Bike Ride is around 14.5 miles, with some walking to visit some of the sites en route, and a height gain of around 900 foot.

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