Great instructions! I can remember as a kid that we walked into the caves at the very point of the island under the "Gun Batteries " at Seroe Colorado. We called it "Seru Cora" which amounts to the same thing = 'red-hill. This area is so named because of the red dust and rocks in that general area.
Anyway - we would go to the very end and climb into a cavern (of sorts ) where there was a small natural span or "bridge". The walls shone and moved with the crabs that covered it. Thousands of them crawling on the walls and our hands and not a single bite. - The water would come into the cavern through a passage below and bubble up to a certain level and then suck itself back down with the wave movement. The crabs moved with the waves and it glorious to me the illusion of the walls moving up and down with the wave motion.
Looking back, I can see how we pressed our luck by going into that cavern just to see a small natural bridge, yet it was an adventure that needed to be had. One of those destiny things that can't be changed and only looked back on with full knowledge that luck was on your side in those days. If I recoall correctly, I smoked my first cigarette in that wet cavern. PALL MALL.
If the Mississipee had Mark Twain and Huckleberry Finn then that wet dank Aruba cave with crab-moving-walls had us and others that went there.
About 20 years ago, I went to that same cavern with my eldest son and showed him where "His Dad" had adventured. We crawled out all scratched and wet and sat on the rocks looking at the very dark blue ocean. He never looked at me but just at the sea. The red soil and rocks of Seru Cora in the background. He said "I uderstand".
"What" I asked. And looking at the ocean he said "Why mom calls you crazy". I kept silent realizing she was a wise lady.
The North Coast and its' natural bridges can be as nice to look at as they are dangerous. If you are going to check them out and temptation gets' the best of you, don't think so much about the PHOTO OP, but think about the safety issues surrounding getting to close to Mama Nature. Sometimes - she bites, even if the crabs don't.