Salt Pier is a industrial dive site, but don't rule it because of that. Marine life has an odd affinity for human structures and the quality of the Salt Pier dive site is living testament. Be sure to take a quick look at the structure of the pier pilings before swimming out - it will make nav easier later on. The central cluster of piers seemed the most lightly decorated vs. the outer clusters, which are worth the short swims. It's a shallow dive so one tank should get most divers through the whole show.