While you're out and about, don't miss the USS Constitution Museum in the Charlestown Navy Yard. Admission is free (donations are welcome and encouraged), and the museum has special programming leading up to the Constitution's annual turnaround cruise on July 4th. It's a fun way to get out of the sun for a bit, learn something new, and celebrate American History. Take a walk along the water on your way home and swing by Papagayo for a margarita on the patio. I promise you'll enjoy it!