Out of bounds/noclip areas exploration

I've always been very interested in out of bounds exploration in MMOs. Since the early days of World of Warcraft so many years ago, I've been exploring "secret" areas through precise jumps and noclipping strategies.

Besides going where no one has gone before, what interested me is the more or less hidden knowledge required to gain access to those areas.

I tried to find such resources on GW, but youtube videos get lost in a myriad of GW2 themed ones, and no one in game has been able to help me.

As of now, I've only been able to explore the noclip area from where the Charrs spawn from in the Great Northern Wall coop mission (see screenshot here https://i.imgur.com/Mb4j4nx.jpeg).

Do you guys know any other areas such as this, and how to get there? I already know about the fact that you can portal-skip and access known location to explore them without monsters, but I'm more interested in liminal, secret noclip areas.

Are there any resources online you know of? Perhaps this great community can point me in the right direction.

Thanks!