England, 1980s

A photo of my dad and his friend, hoping someone recognises the tank structure. My dad thinks it was possibly around the south coast but can't be sure.

https://preview.redd.it/a3zud8cwoxee1.jpg?width=1061&format=pjpg&auto=webp&s=24eae1679375025b128aa3ef3cf719245d6cdae0