This section of path is currently flooded (and signs notify that fact). Bexley PRW Team are aware and the Electricity company that own the field were originally going to resolve the issue, but then we all went into Lockdown.
Temporary measure is to walk across the field.
As an aside, the OS mapping indicates that the RoW turns up and over the hill! TBH that would make a pleasant alternative for the benefit of a viewpoint!

"There is a dentist not far from here but it has a different name "
The place has gone or never existed. This is an auto-generated note from MAPS.ME application: a user reports a POI that is visible on a map (which can be outdated), but cannot be found on the ground.
POI name: Casey Dental Care
POI types: amenity-dentist
OSM data version: 2019-05-17T13:54:02Z
#mapsme

Sign post

via StreetComplete 60.3

Stile here

You cannot cycle here

This is private home and stable yard not a
Business