Colorful flags strung across a ship are not just for decoration. Sailors use “signal flags” to communicate with other ships. Discover the signal flag code and create your own secret message to send to a friend! Best for ages 4 and up. This is one activity in a group of many school vacation offerings. For more information, visit www.nps.gov/bost or call us at 617-242-5642 or 617-242-5601.
Due to the many closures, we recommend contacting organizations to confirm that they are open.