Old San Juan was founded back in 1521. Fast-forward (almost) 500 years, and Old San Juan has since become one of Puerto Rico’s most-visited sights — and one of the Caribbean’s most vibrant neighborhoods. Here are 10 things to see and do when in town, according to our expert.

Old San Juan was founded back in 1521. Fast-forward (almost) 500 years, and Old San Juan has since become one of Puerto Rico’s most-visited sights — and one of the Caribbean’s most vibrant neighborhoods. Here are 10 things to see and do when in town, according to our expert.