For Jones Beach lifeguards, the job may end when the summer season comes to a close, but the bonds forged on the sand, and in the ocean, can last a lifetime. That legacy was recently celebrated when the Jones Beach Lifeguard Association honored three members of the lifeguard community whose contributions span generations: Dave Spence, who spent more than six decades on the beach; Scott Riegel, founder of the Junior Lifeguard program; and Brandon…