What is Holme Fen?published at 11:17 BST
Image source, James T M Towill/GeographJust south of Peterborough, between Yaxley, Stilton and Ramsey, the nature reserve spans about 660 acres (270 hectares).
The site, which is managed by Natural England, is 2.75m below sea level and the lowest land point in Great Britain.
It used to be the site of Whittlesey Mere, which was the largest lake in southern England. In the 1850s, it was drained to create farmland.
This became Holme Fen and survives as one of the only fragments of ancient wild fen, along with Wicken Fen on the other side of Cambridgeshire, which is run by the National Trust.
Holme Fen is home to over 500 types of fungi, external, a birch woodland, an ancient bog, heathland and it hosts a variety of birds, including the Eurasian siskin, nightingale and lesser redpoll.







