An amazing site to see
I have visited Cartagena twice, and I have not found a more fascinating place than Café del Mar, where you can go with friends or by yourself. The music, the view of the sea and Bocagrande is incomparable, and do not forget the girls serving you with their eternal smile. It might rain and you might have to run to cover yourself, but with a little luck and planning ahead you can be outdoors, which is sublime. If you go to Cartagena, do not miss this site.