PHNOM PENH, Cambodia – Cambodia on Friday released a TV spot to promote the “code of conduct” for tourists visiting the famed Angkor Wat Temple in northwestern Siem Reap province.

Produced by the Apsara National Authority, which manages the ancient site, the four-minute spot advised tourists not to wear revealing clothes, to smoke, to give money and candy to children, and to take a selfie with monks at the temple.

The bilingual film, Khmer and English, also tells tourists to avoid littering, touching carvings or sitting on fragile structures and entering restricted areas.

“For the preservation and sustainable development of Angkor, our sacred world heritage site, it’s our duty to respect the Angkor Code of Conduct,” Apsara National Authority’s deputy director general Sok Sangvar said in the film. “These rules are made in order to prevent negative impacts on our temple, our environment and our culture,” he said.

Angkor Wat Temple, inscribed on the UNESCO’s World Heritage List in 1992, is the Kingdom’s most popular tourist destination. The site attracted 1.67 million foreign visitors in the first 10 months of 2015, generating revenue of nearly $48 million from ticket sales, according to the Apsara National Authority.

An entrance fee to the site is $20 per day for a foreigner, $40 for a three-day visit and $60 for a week-long visit.