We used this theme as a week of camp theme, but it could be made into a single day also.
We had activities such as having teams build pirate ships then we had a “ship fight” to see which ship would hold up. We also had a Treasure Hunt, were teams went around and used clues leading them to different areas of camp. The winning team got a small prize. We also told a pirate story and had one of the counselors dress up as a pirate and visit.