The first bolt is not far off the ground and just before the crux. The crux for me was getting past the first bolt and over the bulge. It took me several falls, takes, and starting over from ground level. Above the bulge is easier ground, but the tufas make the climbing fun and varied. This climb alone made the barefoot wade across worth it. Do this climb at low tide, or you might miss having to figure out the crux.
After wading across from Phra Nang Beach, walk up the shore (low tide), the climb starts on the right side of a tufa system bulge that is at about high tide level. Rappel route.