All National Trails in England and Wales are part of the IAT/SIA. In England, these include:
Cleveland Way, Cotswold Way, England Coast Path, Hadrian’s Wall Path, North and South Downs Way, Norfolk Coast Path, Pennine Way, The Ridgeway, South West Coast Path, Thames Path, and the Yorkshire Wolds Way.
In Wales, the trails include: Glyndŵr’s Way, Offa’s Dyke Path, and the Pembrokeshire Coast Path. There are numerous ways to combine these trails into circuits of various lengths.
Length in England: 2358km / 1465mi.
Length in Wales: 794km / 493mi.
Note: Length may vary depending on which spur trails or alternate routes are followed.