6 to 10 sweeping the beach several times After Hurricane Ivan Grand Cayman was totaled,I worked for a company that owned several Hotels there I was sent 1 week after to assess the damages and get repairs underway, NO electricity anywhere on the island, We were sleeping on the beach in chase lounges ,I was looking at the waves rolling in,and saw the 1st flash by with just a swish I could not believe my eyes, then 2 more appeared seem the were checking out the island, About 10 min later it happened again this time I counted 4 of them, don't know if they were the same as 1st and circled after that I did not see em again