What reasons can you provide to be eligible for a 30-day visa extension in Thailand?

To be eligible for a 30-day extension of a tourist visa in Thailand, you can simply state 'tourism' or 'extend holiday' as your reason. Several respondents confirmed that mentioning tourism is sufficient and that detailed explanations are typically not required. Some have also suggested mentioning COVID-19, especially if applicable, but clarity on the context (normal tourist visa vs. COVID extension) is essential. Overall, 'tourism' or similar phrases suffice without needing to elaborate.