A Thai marine conservationist and advisor to the Department of National Parks, Wildlife and Plant Conservation has resigned following a confrontation with a Russian tourist in Krabi province.

The incident, captured on video and widely shared on social media, shows the advisor, Siranudh 'Sai' Scott, confronting the tourist after being greeted with the Mandarin phrase 'Ni hao'.

Scott perceived the greeting as culturally insensitive, emphasizing the importance of recognizing Thailand's distinct identity.

The tourist denied any ill intent, stating he was unaware of the greeting's implications.

The exchange has ignited discussions across Thailand regarding the appropriateness of using foreign greetings without understanding local cultural contexts.

In the aftermath, Scott announced his resignation, citing a desire to continue his conservation efforts independently.

He expressed concerns over systemic issues within the department, including alleged environmental misconduct and insufficient support for park officials.

The department's director-general acknowledged receiving complaints about Scott's conduct but clarified that no formal dismissal had occurred.

Local tour operators have submitted a petition requesting an investigation into Scott's actions, accusing him of misrepresenting his authority and causing reputational harm through his social media activities.

The situation has highlighted ongoing tensions between conservation efforts and tourism practices in Thailand's protected areas.