We were not allowed to take a planned shore excursion due to medical history so simple wandered about the port for a while. Since we had not carried any money with us, we had a simple answer to anyone offering tours "no cash". We heard from others that there was some free wifi available but we did not take advantage of it.
We had a wonderful walking tour of the old town area with a pleasant guide. We were picked up and dropped of right at the ship, simplifying life on an extremely hot day.
It was a very hot day and we were not feeling well so we simply wandered about.
We simply walked to the nearby mall and visited a Starbucks for the wifi. There are a number of shopping opportunities near the port for anyone who needs to pick up some necessities.
On the whole, it was a good day. The standout portion was a boat ride to see crocodiles. The rest of the day was fine but paled in comparison.