As aforementioned, Fort Clinch's east bastion is locked up...and it's the one that's full of all the cool stuff! Assumedly guided tours are brought into this bastion, which houses bunks, a table, at least one flanking gun and a Casemate Gin, which is that thing with pulleys in it, that looks like a tipi without the animal skin covering. This Gin (short for engine, which is interesting because it has absolutely nothing to do with an engine) was used to lift cannon tubes.