I came across the Albuquerque Raging Grannies when Surfrider was organizing for the Hand Across the Sand event. They sent me an email with a link to their song and said:
"We're 800 miles away from the nearest beach, but we want to offer our encouragement! Please feel free to use our song at your demonstration. It's the to tune of "Blowin in the Wind" which everyone knows and is a real crowd-pleaser"!Enjoy!