- Paws for a Walk http://www.pawsforawalk.co.uk This website covers everything to do with travelling with dogs. It includes dog friendly accommodation, walks, safety aspects and information about the countryside and access.
- Peak District and Derbyshire http://www.visitpeakdistrict.com/
- Ramblers Association http://www.ramblers.org.uk/
- RSPB http://www.rspb.org.uk/
- Scottish Long Distance Routes http://www.snh.gov.uk/enjoying-the-outdoors/where-to-go/routes-to-explore/scotlands-great-trails/ Details of Scotland's equivalent to National Trails
- Scottish Natural Heritage http://www.snh.org.uk
- South East England Region http://www.visitsoutheastengland.com
- South West Region http://www.visitsouthwest.co.uk
- Sport England http://www.sportengland.org/
- Spotlight Guides http://www.spotlightguides.co.uk/ GPS Systems