- South Pennines Packhorse Trail http://www.rightsofway.org.uk
- South West Coast Path http://www.southwestcoastpath.com/ The South West Coast Path National Trail - 630 miles of superb coastal walking. From Minehead on the edge of the Exmoor National Park to the shores of Poole Harbour in Dorset it is the best way to enjoy the wonderful coastal scenery, wildlife and heritage.
- Sport England http://www.sportengland.org
- StoneTrail holidays http://www.stonetrailholidays.com/ Stonetrail is a 16th century former farm in a fabuously quiet part of Cumbria on the border of the Yorkshire Dales National Park offering walking, cycling and horse riding breaks.
- Sustrans http://www.sustrans.org.uk/ Sustrans is the UK's leading sustainable transport charity. Our vision is a world in which people choose to travel in ways that benefit their health and the environment
- Thames Path http://www.nationaltrail.co.uk/ThamesPath/ Follow the greatest river in England for 184 miles (294 km) from its source in the Cotswolds almost to the sea.
- Towneley Trail Riding http://www.towneleytrailriding.co.uk/ Riding Holidays on the Mary Towneley Loop
- TrainTaxi http://www.traintaxi.co.uk
- Transpeak Walks http://www.transpeakwalks.co.uk/ A not for profit voluntary group offering "free to the public" guided walks in the Peak District National Park.
- Transpennine Trail http://www.transpenninetrail.org.uk