MAPS

Scroll to bottom for detailed maps of the park itself, and of the surrounding area with car parks.

For any map that lets you enter a very precise location, the centre of the park is at:

Grid reference TQ 09533 96850

Lat. / Long: 51˚ 93’ 70” N. and 00˚ 25’ 01” S

Google. Best for aerial views and Streetview. Can be switched from ‘Driving’ to ‘Walking’ but doesn’t’ work very well in the countryside because very few footpaths are on Google.

Waze. I find Waze navigation more accurate than Google, but for driving only, it can’t be set to ‘walking’ (get the app.)

Streetmap. If you just want to look at a map with the clearest detail (whether driving or walking) this is by far the best – though roads only, not paths in the countryside.

What3Words. Best for very precise locations, especially in areas with no roads. It gives locations to the nearest 10ft (can be 30-40ft if the GPS signal is poor). The centre of the park is at location solve.tribes.cities (you need to keep scrolling out until you can see the whole park). Get the app.

Ordnance Survey. Best for countryside. These are the most detailed maps, all other maps (except Google and Openstreetmap) are based on Ordnance Survey. You can get these maps for free on your phone (get the app.) though to zoom down to individual-house resolution you need the paid version. I also recommend their paper map, OS Explorer 173 (London North), it includes all of Cassiobury Park and Whippendell Wood and even works when you don’t have internet access.

Openstreetmap gives as much detail as the paid version of Ordnance Survey but is entirely free. It is not, however, entirely accurate. For instance, “Cassiobury Park Station” is clearly marked in the park, but this is the station for the miniature railway, a five minute loop through woodland, not much use for getting into London. However, if you find Ordnance Survey ‘too complicated’, Openstreetmap is the one to go for.