Marriott’s Way is an off road 26 mile trail stretching from the Broadland town of Aylsham to the city of Norwich.

https://www.marriottsway.info/about/

It is a beautiful route - much of it covered by green canopy and very flat! 

Native grasslands are one of the most endangered ecosystems in the world. Get up close and personal with them by running the Valley of 1000 Devils – 10.3 KM out and back in the East Block of Grasslands National Park in Saskatchewan. The trail is not marked, but there’s a well-worn footpath that is fairly easy to follow. Temperatures on the trail tend to be 10° Celsius hotter than in the Rock Creek campground, making it essential to take water.