Upon entry to the fort, one pays at the gift shop, which really is quite lovely and crammed with interesting stuff (including a few items related to Fort Zachary Taylor, which, criminally, has no gift shop), but there will be no picture-taking in the gift shop, thank you very much.

Take a right and you're inside the fort museum! There are three informational signs in this area: Civil War in Key West, East Gulf Coast Blockading Squadron, and Secession or Submission.