Cors Bodeilio National Nature Reserve

Cors Bodeilio is one of the three fens on Anglesey that have been designated as National Nature Reserves. It is an internationally important nature reserve due to its unique mire (a wetland area without forest cover dominated by living, peat-forming plants).

Opening times, entry costs, facilities and directions

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Things to see

Follow the waymarked walk over the boardwalk out into the fen for great views and the chance to spot some of the fen’s many dragonfly species, other wildlife and the wildflower display in spring and summer.


Top species

Scarce Blue-tailed Damselfly

A rare near threatened.

Main flight period is May to September.

Look out for the newly emerged adult females which are bright orange.

Image by Paul Ritchie



Seasonal Highlights

An abundance of blue and black damselfly species can be seen in spring, including the rare Variable Damselfly.

In summer Keeled Skimmer are in flight and can be seen hovering of the waters.

Hawkers are still on the wing in the early autumn, including the large Common Hawker.


Image by NRW

Contact Information

Natural Resources Wales
Maes y Ffynnon
LL57 2DW

T: 0300 065 3000

Cors Bodeilio National Nature Reserve