Flyrodinhand,
I live just south of Xtan Ha and have been here for 12 years. Which home in this area that you mention has the aggressive dogs? I can surely mention it to the owners and see what I can do to fix the problem. This is not acceptable.
I walk on the beach 5x a week for about 1 1/2 miles each time. I was bitten on the leg by a dog just south of Canary Cove a couple of years ago. So now I have a small stun gun I attach to a belt when I exercise. Just pressing the button for a second scares off any dog that comes near me. They are legal and available from Amazon. I feel perfectly safe now when I walk. FYI......