A diverse reserve nestling in the Mimram Valley, where a fantastic two storey hide gives great views of the wildlife in clear, chalk stream waters.
A diverse reserve lying in the Mimram Valley which contains a variety of habitats including wet meadow, tall fen and swamp, alder carr, willow scrub, willow pollards and chalk stream. The tall fen/swamp occurs around a lagoon and along adjacent channels, and has a mixture of common reed, reed sweet-grass and common reed-mace. Water voles can be seen swimming in the reedbed channels. The surrounding banks support great horsetail, butterbur and town hall clock. Greater tussock sedge grows here, a species now uncommon in Hertfordshire.