While touring El Morro, I discovered that it is guarded by a platoon of iguanas. I will assume that is what they are all doing there. That, and most of them seem to be there because they know that is where there is a lot of tourists, and the iguanas like to have their photos taken. Iguanas are hams. One was posing on the top level. I took a few photos, walked away to take photos of the fort, and walked back. The iguana had moved closer to the edge and where the people were. I kneeled down and got out my macro lens, and the iguana obliged by posing to make sure its best side was shown while I took photos for several minutes. Now, I only do what the iguana clearly wanted and post its photos.