The National Park, Wildlife and Plant Conservation Department has vowed to strictly prohibit alcohol drinking at its national parks. It has threatened to take tough legal action against violators.

A huge increase in the number of visitors to parks around the country is expected during the New Year holiday. Alcohol is seen as a factor that may lead to fights and other disruptive behaviour among revellers, Thanya Netithammakun, director-general of the department, said on Sunday.

"The department is concerned about problems associated with alcohol such as rowdy behaviour or accidents. Most visitors to the park expect a peaceful stay and only wish to indulge in the natural beauty," he said.

The department has told officials at national parks nationwide that they must strictly enforce the ban on alcohol, he said.

Those who violate the ban will face up to one month in jail and/or a maximum fine of 1,000 baht, he said. Anyone caught violating this ban will also be asked to leave the park immediately.

Mr Thanya also said the department has ordered its national parks to offer an alternative way to celebrate -- with Buddhist prayer.

Those who witness any violations of the ban are advised to report them to the department's 24-hour 1362 hotline.