In reply to LudoIochem:
Thanks for your answers guys !
There are few more walls yes, like the Hight Sports West 1, Hackney, Brixton and few others, the White Spider, Craggy Island Guilford, and few others.
Didn't all this meetup group, I'll have a look thx. This is just a Facebook Group, good to hear from others.
Thx again