Question for a map

Q: How do I get onto Parkland Walk from Highgate, London?

(click through to see bigger images)

Yahoo: Fail! (the path stops some distance to the east, so isn't even shown here)

Microsoft: Beyond fail! (same lack of path mapping as Yahoo, plus the woods are missing)

Google: Better, but still fail! (shows the path joing up to Shepherds Hill Heights, which it doesn't, even if you spend 15 minutes looking)

OpenStreetMap: Win! (the full extent of the path is correctly mapped, plus all the connecting footpaths)