n.b. Lincoln: this ancient city is built on an escarpment edge above the River Witham, (which it now envelopes). To the north the land falls steadily toward the Humber Estuary; to the east the land gradually flattens toward the German Sea beyond Boston and its Stump.
If you ever decide to visit this fascinating historic city, the Allotment House Bed & Breakfast is highly recommended; great bed and an excellent breakfast. It has a much-loved garden that enjoys the morning light.