The floating sands spread across the sea, and they shone in a bright golden colour in the sunlight.
This bizarre phenomenon raised questions about what floats on the sea. Some locals said the floating objects were jellyfish, artificial corals, garbage or chemicals.
However, the floating sands reportedly came from a breakwater construction site from where waves swept the sand into the sea.
Related stories:
Officials reveal how 8,000kg of gizzard shad ended up on Bang Saen beach
A silky Pattaya picnic – then tee-time at Honda LPGA Thailand