Regarding the statistics at the International Shark Attack File, they have been tracking information about attacks for longer than most people on this board are old - at least since the 1970's. They look at everything - time of day, vis., temp, depth of diver, depth to bottom, activity of diver, distance from shore, number of divers present, colors of wetsuits, and on and on and on. It's what they do for a living. They used to say that bright orange and yellow are not good colors to wear while diving - but removed this advice because of threats from suits from diver gear makers, inspite of there being evidence bright colors were not a good idea. There are several research scientists and a staff of graduate students - most are divers too. Blowing off the information because it has been analyzed with statistical mathematics is, to me, kind of like sticking one's head in the sand. That doesn't mean you don't take the info with a grain of salt, or ignore your own experiences, or start diving only from the confines of shark cage, but it doesn't hurt to be aware of it. So I would recommend every diver who dives in salt water become acquainted with the information on this website, unless one believes his own opinions or those of his 21 year old dive master with 18 months of experience are superior to 40 years worth of hard science. It's free, it's one click away, and it's the mass accumulation of decades of study on the subject by paid scientists, and you won't find the info in a dive certification training manual (whose main purpose is to get more folks certified so dive shops can sell more equipment, and not scare anybody away -i.e. the quinticential example of highly biased and opinionated information). My main beef with the information is NOT that they overplay the danger of sharks, rather the opposite. They screen out a heck of a lot of attacks by saying they were "provoked" - like surfing, or spearing, or being in boating accident, and on and on and on. It's like the Florida Tourism Board is in charge of the File, and is scared to death the real numbers will have and adverse impact on tourism in Florida - "so make it all go away" seems to be their underlying objective. There are at least two diver deaths in David Baldridge's book "Shark Attack" (now out of print) from the 1970's, both from divers spearing (one was separated from his party and got hit by a Tiger in shallow water near Fowery Rock in Miami, and one was a Navy diver on a recreational dive, taken as the last man headed up the anchor line, near Pensacola. The actual number of attacks, including fatal attacks, in Florida and elsewhere, is much, much higher than what the International Shark Attack File reports, because they screen out a whole host of activities as "provoking" the shark into attack, such as the diver in California who had just jumped off the boat with an unloaded speargun, and was taken immediately by a uber large whitey in one gulp, or the guy off of South Africa that was swallowed whole, tank and all, by a whitey more than 20 feet long (observed by multiple divers in his party), or Randy Fry, the president of the California spearfishing organization, decapitated as soon as he submerged as a freediver, with his buddy right next to him, or the girl at Looe Kay last year that was feeding fish with cheese in a can, and got ass-bitten by a bull. Attacks are rare, but they do happen, and know this from someone who has made a hobby of studying the subject, and from comparing other sources of published information with actual case histories, they are vastly under-reported by the File, and greatly downplayed by the professional dive educators. Yes, they are rare, but the Landlord is out there. I have had three close calls from boats almost hitting me over my 40+ years of diving, and only one "not sure I'm going to make it" situation with sharks, a group of Pacific grey reef sharks in Palau. Here is the link to the file.
International Shark Attack File Be safe, have fun. Will in Sarasota