The Fermyn Woods are ancient woodlands containing predominantly oak and ash, along with some conifer plantations. They benefit from two walking trails, a horse riding trail and three Danish Shelters for overnight camping of groups.
Just south 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, several play areas and toilets. Refreshments are available from the on-site cafe 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.