What would you do during two days in Carthagena

We booked an April 2017 cruise on Celebrity Equinox with an intriguing itinerary that includes an overnight in Carthagena. We've been there before but so many others. We'd like suggestions as to the best use of our time. If you know of any links, please share.

What I am not looking for is any evangelization against Carthagena. This is our decision and the only people we want to please are ourselves.

There is another thread on this board about an overnight in Cartagena. Be sure to check that out too.

By the way we love this city.

As I mentioned on the other thread visit the Fort, the Walled City, the modern city and the Catholic Church high atop the city.

Keith