Fermyn Woods are ancient woodlands containing semi-natural oak and ash woods, along with conifer plantations. The woods were managed as coppices for many centuries. They contain two walking trails, a horse riding trail and three Danish Shelters for overnight camping of groups.
In front of Fermyn Wood is the Northamptonshire County Council managed Country Park, which includes a former ironstone quarry. The Country Park has a large pay and display car park, visitor centre and toilets. Refreshments are available when the Visitor Centre is open. The waymarked trails, including an all-ability access route, leave from the visitor centre. The wood has been mapped for orienteering, and leaflets are available from the visitor centre.