The mayor of Muang Saen Suk municipality in Chon Buri on Sunday warned that Bang Saen beach could face another closure if tourists fail to follow Covid-19 safety rules.

Narongchai Khunplome posted the warning on Facebook, saying if visitors heading to Bang Saen don't comply with Covid-19 safety measures, the government may close the beach again.

The popular beach reopened on June 1. However, the government is highly concerned about the possibility of a second wave of Covid-19 infections.

Mr Narongchai posted his information after seeing crowds flock to the beach yesterday, with many people failing to observe social distancing etiquette.

"If tourists continue to violate health measures, closure can be enforced once again," he said.

Crowds were also spotted on Bali Hai Pier waiting for the Koh Larn ferry in Pattaya as officers took temperatures and recorded the names of tourists or asked them to register at the Thai Chana website.

Beaches far away from Bangkok, such as Koh Phi Phi island in Krabi, however, remain deserted as domestic tourism is yet to see people travel far from Bangkok.