Tourism
Black Oil-Like Substance Found at Jomtien Beach
Authorities have issued a swimming warning for Jomtien Beach and Koh Lan following the discovery of a black, oil-like substance washing ashore.
On Monday, August 10, 2026, reports emerged of a black, oil-like substance appearing in the waters and along the shoreline of Jomtien Beach in Chon Buri. According to Khaosod English, the contamination has been observed both floating in the sea and accumulating on the sand. The impact of this substance extends beyond the immediate beach area, with significant quantities also reported near the popular tourist destination of Koh Lan.
In response to the discovery, Pattaya City officials have initiated a cleanup operation to address the pollution. As a precautionary measure, authorities have advised tourists and residents to avoid swimming in the affected areas until further notice.
For travelers and residents, this situation may disrupt planned beach activities and water-based excursions. While the cleanup is underway, the exact nature and origin of the substance remain to be confirmed by local authorities. Visitors are encouraged to monitor official updates from Pattaya City regarding the safety of the water and the status of the beach cleanup efforts before planning any visits to Jomtien or Koh Lan.