Hi,
Are you looking at the missing tarmac area to the NE (now added), and wondering if it is the cycleway route?

One the ice goes, I can probably manage a cycle survey to check (inc. Shoreview/ Woodgreen/ Crofton Grange/  Commissioners Quay Ascent site).

Sustrans NCN1 going through the park is pretty but is a rather rubbish route for travel. From a previous survey ISTR there are wooden post route markers, but with incomplete coverage giving some uncertainty.