The snippets describe Westview Marina on the River Great Ouse, not on "Wadsby's Folly" as stated in the POI.

However, the marina itself is clearly a real and well-documented location, and "Wadsby's Folly" may be a local waterway name or cut associated with the Earith area. The snippets do describe this marina directly, so a description is warranted.

--- Westview Marina & Leisure Park sits on the River Great Ouse at Earith in Cambridgeshire, offering over 110 moorings for cruisers, narrowboats, wide beams, and small craft.

Established in 1972, the family-run site has been developed with environmental and wildlife considerations in mind. Visitor moorings are available on the river frontage, with pump-out and diesel fuel on hand.

A well-stocked chandlery operates from an 80-foot wide beam barge moored on site. Riverside touring and camping pitches are also available seasonally for those exploring the area by land or water.