Share 'tulum ruins private beach?'

I saw a small beach right below the ruins with people sunbathing there. My dream this year is to tan every day on that secluded beach, and dance to funk every night at the parrot. Not sure where Id stay yet. But I am wondering how I access that beach? Do I have to go thru and pay the access fee to the ruins everyday? Im assuming its a public beach. any info appreciated.