Hello,

I'm going to arrive ( by plane) to Bangkok in 2 weeks and my flight back will be after 3 weeks. My plan is to go by plane on second day to Madalay and than after 1 week to Chiang Mai ( by plane). From Chiang Mai by land to Laos and at the end of my trip from Laos to Thailand by land again. Is it ok do it without visa? I'm form Poland so I can stay 30 days without visa but as far as I know crossing border is limited ( twice per year) but probably it concerns only land border. Am I right that I don't need a visa because I cross border by land only once?