I have just added this to the map of places to fly your drone at Drone Scene:
Land owner permission requirements unknown.
Just off the M8 at Junction 31 What 3 words: vast.shut.reason
A small car park which offers excellent views of the River Clyde opposite Dumbarton Castle. Car park is large enough to safely launch your drone
The originator declared that this location was not inside a Flight Restriction Zone at the time of being flown on 27/07/2021. It remains the responsibility of any pilot to check for any changes before flying at the same location.