Isn’t this a beautiful mature specimen of Japanese Knotweed which we were asked to appraise for removal? Removal of Japanese Knotweed near coastal environments can be tricky. It is easy to cause spread due to rhizome fragments near water. You should always try to find the best solution for the environment as well as your client and sometimes it is better to leave infestations like this in place and treat / eradicate with herbicide instead.
It may take longer but impact on the environment especially the beautiful West Coast of scotland will be minimised.