Bangkok Noi Canal: Beginner's Route
Military Base Shortcut
Head through the big gates ahead and keep going. This is a well-used shortcut so you shouldn't have any problem with the boys in uniform.
Just keep walking straight, and you will see a grey gate at the far end of the parking lot. We're heading through there.
Oh and surprise, surprise - it IS a military base! Sort of...on the map it's listed as the Flotilla Naval Transportation Department, so...something to do with boats and stuff? I don't know, I'm not a military man, but the Thai Navy HQ is just a few km south of here, to your right, so it makes sense.