Whilst the ride misses the Isle of Ely, I like the fact that the route manages to go through Willingham - according to Wiki - "an ancient earthwork about 1.2 miles (2 km) east of Willingham, Cambridgeshire is still visible at the junction of the old fen causeway and Iram Drove. This circular feature, known as Belsar's Hill, is a potential site for a fort, built by William, from which to attack Ely and Hereward"