The nearest town to the start is Downham Market (West Norfolk District Council), and the nearest town to the finish is Ely (East Cambridgeshire District Council).
We assume most people are familiar with internet searches for accommodation. In addition the District Councils provide listings of accommodation they approve:
There is a Travelodge on Ely bypass, however, being a rural area, most accommodation is small private hotels and B&Bs. If there is a large party, it is advisable to book early.
Looking further afield, Cambridge, which is 17 miles south of Ely, offers a wide range of accommodation.
The club is unable to make any specific recommendations.