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Photo: Ray West, CC BY-SA 2.0 via Wikimedia Commons
Site of village dating back to Middle Stone Age, visible remains of circular Iron Age dwellings.
The Holyhead Mountain Hut Circles are the remains of a group of Celtic Iron Age huts near Trearddur on Holy Island, Anglesey, Wales. The site is under the care of Cadw and can be visited all year round. The construction of these huts is very similar to those at Din Lligwy, having thick stone walls.
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Ellin's Tower view point and visitors centre. Good chance of seeing Puffins, Razorbills, Guillemots, Kittiwakes, Fulmars, Peregrine and Choughs nesting on the cliffs. And between the car park and the reserve look out for meadow pipits near the path.
Built in 1809, it stands impressively on a rocky island just off the coast. Reachable by steep steps and bridge. Tickets need to be purchased; details at get around.