You made me go back and look to make sure they were right. Todd the # 4 lets you spend time at the fortress--where the other 3 all include but it is just a photo shot opportunity.
attach a tour ("Paula Bader #4) that includes a full visit to San Felipe Fortress. Those that choose this need to understand that with the climbing of 180 yards of fairly steep ramps in the sun and humidity of Cartagena makes this of "high exertion". But for those interested in "Romancing the Stone" and "Pirates of the Caribbean" the Fortress is really impressive!
I am attaching AGAIN the original versions of #1 and #3, just so that you have all 4 tours plus the menus in one place.
I had saved links to the sites and now can't find them. I'll post them for you when I get home later this evening.