The Promenade is usually the first dive.  This is where the guides determine your diving skills and experience before they take you deep into the wreck and find you have serious skill gaps. The Promenade is no longer what it was.  Part of it has fallen into the depths.  However, we do get to look at a lot of scattered equipment including rifles and gas masks.  Dave our guide is quite the comic with gas mask and rifle (see pics).