I have just added this to the map of places to fly your drone at Drone Scene:
Land owner permission requirements unknown.
Exact location where I parked for What3Words ///punt.from.clip
There is an open gate into the field but you could just as easily TOAL from where you’ve parked as it’s concrete instead of the marsh. I went on a Saturday, unsure on permissions but there were other people using the field for dirt bike practice too.
Definite landing mat required very boggy but worth it to get shots over the Thames and surrounding Marsh.
The originator declared that this location was not inside a Flight Restriction Zone at the time of being flown on 20/03/2021. It remains the responsibility of any pilot to check for any changes before flying at the same location.