Thats the reason for calling it a "secret"

Whoever find the way to open it, gets a cookie.

Doorbuster?

Found out the code that you can type in keypad: 586371

It took me 7 hours to find it but i did it...
Here goes:
Noclip into the room behind the hottub (Traitor room im guessing)
Push the fuse box on the wall closest the hot tub
Smash the wall in the showers beside the far right one
(I found this indestructible so if you're in sandbox just remove it)
Push the button in the hole
Press the brick on the spiral staircase the first time around facing the showers (it should push in)
Press the middle button in the ticket booth
Press the valve on top of the machine room
Press the button in the machine room
Now you have unlocked it
Now punch in 586371 (took me forever to decode that)

And after all that work i got a little less than i was expecting.

Originally posted by |TCB|TehBreakerPanel:

It took me 7 hours to find it but i did it...
Here goes:
Noclip into the room behind the hottub (Traitor room im guessing)
Push the fuse box on the wall closest the hot tub
Smash the wall in the showers beside the far right one
(I found this indestructible so if you're in sandbox just remove it)
Push the button in the hole
Press the brick on the spiral staircase the first time around facing the showers (it should push in)
Press the middle button in the ticket booth
Press the valve on top of the machine room
Press the button in the machine room
Now you have unlocked it
Now punch in 586371 (took me forever to decode that)

And after all that work i got a little less than i was expecting.

Wow, thank you.

There is a way to break the tiles.... imonna Change that you cant push the Button unless you did it right. But props for finding out the Rest

Thanks, I spent several hours throughly searching the map the breakable tile for some reason reflects light different so i noticed that easily. The part i had the most difficulty finding was the brick.
But uhh, i don't wanna spoil it. But, why did you choose that for the outcome?

Also if you could i would look at fixing that wall it should break if i hit it with a crowbar. Right?

it breaks after it's being triggered. You basically have to find out the first part of the secret. And to the outcome: I was going to update this soon, so it would be more rewarding for completeing it.

Originally posted by |TCB|TehBreakerPanel:

It took me 7 hours to find it but i did it...
Here goes:
Noclip into the room behind the hottub (Traitor room im guessing)
Push the fuse box on the wall closest the hot tub
Smash the wall in the showers beside the far right one
(I found this indestructible so if you're in sandbox just remove it)
Push the button in the hole
Press the brick on the spiral staircase the first time around facing the showers (it should push in)
Press the middle button in the ticket booth
Press the valve on top of the machine room
Press the button in the machine room
Now you have unlocked it
Now punch in 586371 (took me forever to decode that)

And after all that work i got a little less than i was expecting.

how do i remove in sandbox ???????????????

i mean how do i remove that wall

Hold Context Menu (Def. C) > RMB on the breakable wall part > Remove
OR
Remover Tool > LMB on the breakable wall part

or just pull it away with the physgun lol

Just hold C and press remove