My wife and I spent a day in Cartagena during a cruise. Since we were going to be there only for the day, I did research to find a tour guide that would take us around the city. While many had very good reviews and I am sure they go a good job, the consistently excellent reviews that Martin received convinced me to contact him and schedule his 5+ hour private tour. It proved to be money well spent and less than half of what I would have had to pay to take a ship-sponsored excursion with a bus load of people. Martin picked us up at the pier in an air-conditioned car (it is very hot in Cartagena!). He has an assistant who drives the car while Martin displays his vast knowledge of Cartagena, its history, people, neighborhoods, economy, etc.. The pride that he has in his city and country shows through easily and he was extremely interesting to listen to and exchange conversation with. His English is outstanding! We toured all of the main attractions and neighborhoods of Cartagena, and the benefit of having an assistant drive the car is that the we and Martin were dropped off at the front door of each attraction and at the end of that segment, our driver and nicely cooled car were waiting for us at the end and ready to take us to our next stop.My wife and I travel quite extensively and love going to new destinations. If we could find someone as competent and as interesting as Martin at each locale, I would be extremely happy. He made us want to return to the beautiful city of Cartagena again for a longer visit.