This lovely little nature reserve in Whitworth has lots of nice footpaths to follow through a densley wooded valley. You can enjoy the rushing water of the River Spodden with pretty waterfalls and lots of wildlife to look out for. There's also water mills, picnic areas and the impressive 1867 Healey Dell Viaduct. The reserve has good facilities with a visitor centre providing lots of helpful information and a nice cafe.
The reserve is in a great location for extending your walking in the area as there are number of waymarked footpaths to pick up. If you head west you can climb to Hunger Hill and Forsyth Brow before coming to Greenbooth Reservoir. The Rochdale Way and Pennine Bridleway pass the reserve so you can follow these paths across the surrounding Pennine Moors.