It turned out that mid-July is a special time in Grand Cayman because schools of Silversides inhabited the grotto’s (tunnels and caves under the reef) at the dive site named Devil’s Grotto near shore in George Town on the west end of the island. I have always enjoyed seeing schools (otherwise known a s bait balls) in the Florida Keys, so I expected this would a be quite an experience.
The first trip we made to Devil’s Grotto was mid-week on Wednesday, July 17th. At that time there was an impressive sized school of Silversides in the grotto system. As a results there were some nice sized Tarpon swimming around and inside the grotto system. I was able to have some close encounters with a few.
On Thursday, July 18th we went to the same area. As I swam through the grottos, the schools of Silversides seemed a lot smaller. However, I did have some great Tarpon encounters. One of my favorites was at the end of the video below where I swam up out of the grotto through an opening in the ceiling and came right up under a nice sized tarpon.
Later on I was swimming above the grotto system while the others in the group went through. This time I was able to see a school of Silversides from above and also watch a beautiful school of Blue Tang swim by.
I went again on Saturday, July 20th, which was my last day in the water for the trip. By that time I did not see any Silversides as I swam through the grotto system. I’m not sure if they all were eaten, swam away or some of both.