Bing, Google, Apple (Apple devices only, avoids visual overload) or OpenStreetMap (scaled map rendering, but no plot or pin features). Or one of the many ‘tourism’ websites. In short, this site is independent and an index, not a PR exercise.
May seem a minor item, but it annoyed me. Park size is noted by criteria. Usefully, Manchester has two of the largest parks in England—Heaton Park, and Pennington Flash. And, a mile or two beyond, Lyme Park. Also, Vimto Park scales as tiny—though you’re not Manc if you havn’t eaten crisps and a sandwich in Vimto Park,
huge
1 mile or more. And not thin (Heaton, Pennington Flash, Reddish Vale Parks
large
1 mile but thin, or not a mile (Etherow Country, Phillips, Jumbles Parks)
median
1/2 mile or near (Fletcher Moss, Platt Fields Parks)
small
1/2 mile thin, or less (Buile Hill, Bolton Queens Parks)
tiny
300m or less (Falinge Park, Denzell Gardens, Mesnes Park)
Since this site is for days out, it would be unusual to find an entry for smaller parks, but the examples show how good they can be.