new, what is the best excursion to take in Cartagena

[merinski]

I'm new to this. Just wondering what is the best shore excursion to take in Cartagena. We are a little nervious of this port. We are cruising with Celebrity Mercury in 2 weeks. They have several city tours. We had thought of the rosario island tour, but have read some scary things on this one. If you can tell me more or now what is a good tour let me know. Thanks

[merinski]

Thanks for your reply.