This is an easy find.
Located along Suon Son Pradipat Beach is a rogue art installation that is made from assorted items found mostly along the beach. So if you see a lost toy, shirt, hat, lighter, toothbrush, flotsam, or jetsam while on your way to the site just pick it up and add it to the art installation.
No need to search through the artwork to find the cache. The point of this cache is to get you to visit a place that most will never see. A gorgeous setting on the Gulf of Thailand on a quiet beach. The cache is located at the base of the number 82 marker.
The only difficulty might be that you may have to force yourself to walk on the beach to reach the spot. It's a tough job, but someone has to do it.
The cache is in a small snap lock container.