Behind the bar?

[Davil]

U walk up to the bar and go to the right side. You'll see a room of barrels,next to it a gate which u can't open. So start running into. After a few seconds draw a cutlass and ur in the bartenders area. then walk straight then u'll see where the table starts for the drink barrels etc. then walk into that and ur in.

Kevin Devilstone Level 33 Guild; Pirates Of Torment

[Captain Seaford]

What I do is I go where the bartenders enter the bar, you know, that little hatch? I run towards the wall and slide left, and eventually slide into that hatch. Then I stop, and just walk right in. Wall sliding is what I do to get in any glitch XD