I want to thank those who responded.
Especially relevant were the real world experiences of contender and Luckenbach Texas.
You guys really caused me to re-evaluate the aquatic use of a handgun in a shark-defense role.
I watched a couple of YouTube videos of sharks in their pursuit of tarpon that fishermen were reeling in. I don't know which species of shark were involved, but it was unbelievable, the speed and turning ability of the sharks in pursuit of a fish.
A person would have no chance at all against a mature shark.
Even in knee deep or waist deep water, humans are at a massive disadvantage.
I'll stick to bears and lions.
I forgot to mention in earlier posts on the upcoming trip, one of my coyote calling partners from the north central Wyoming called me two days after I committed to go to the beach.
Craig: "I'm going to Idaho next month to call wolves. You're welcome to come along. Want to go?"
Me: "Why didn't you call three days ago?"
Since I'm committed to this adventure, now I'm thinking that a Kevlar cable from the winch on the ATV, with the winch modified to a high speed, instant retraction,might be the next great idea. I'll take the suggestions about taking beer and enjoying the beach.
I'll hook the cable to the deer hunting tree stand harness I'll make her wear so I can snatch my wife from the water. My idea of "fun at the beach" now is sitting in the ATV in the shade of the cab, with binoculars and a beer, thumb on the winch button, standing Shark Watch.
The "Luke" critter is gonna be on his own. Survival of the fittest, you know. We''ll see if he's worthy.
I think I still qualify for the purchase of the shark gun.