The plan is to keep the cycleway on the valley floor to avoid hills so that it is easy for people of all abilities to use. Hence it will never be far away from the river.
Problems with access to the preferred route due to, for example, wildlife considerations or legal land access issues, may require consideration of alternative routes and these may require diversion from the River Derwent. However, the design goal is to have the route follow the course of the river as closely as possible. This has scenic benefits as well as providing for a flat route.