Horningsea lies on the edge of the fens and is in a conservation area and surrounded by grade 1 agricultural land. Quy Fen lies to the east of the village and is open to public access. The fen has a number of water filled pits which were excavated in the 19th century for coprolite, (dinosaur dung) and today act as host to a variety of wild life. The village is on the River Cam, and there is a small marina where long boats are moored. There is a river foot crossing at Bait’s Bite Lock.
Quy Fen is the fen to the east of the village, shared by Horningsea, Quy and Fen Ditton, and is a popular area for walking.
Cam Conservancy maintains the River Cam, including weeds, banks, trees, fishing and boating issues
Baits Bite Lock conservation plan describes the river crossing south of the village
The Bridge of Reeds project aims to create a local landmark symbolising Cambridgeshire and East Anglia
The Wicken Fen Vision is a long term plan to join natural wetland from Quy Fen through to Wicken Fen