Passport validityYour passport must be valid for at least 6 months from when you enter Thailand and at least 1 blank page.You could be refused entry to Thailand if your passport is damaged or has pages missing.If you’re a dual national, to avoid problems at immigration, you must leave Thailand on the same passport you used to enter.VisaBritish travelers need to submit a Digital Arrival Card within 3 days in advance of arriving in Thailand (including the date of arrival). To submit the Digital Arrival Card, you can access the Immigration Bureau website at : http://tdac.immigration.go.th Submission Guideline: https://tdac.immigration.go.th/manual/en/index.htmlIf you intend to stay longer (for work, study or other reasons) you need a visa before you travel.For more information on visas or entry requirements, contact the Royal Thai Embassy or local Immigration Office.Please note that passport and visa information can change. You can check up to date requirements with the Foreign, Commonwealth & Development Office at https://www.gov.uk/foreign-travel-adviceFees and TaxesNational Park / Protected Area FeesAlmost all parks in Thailand charge a fee.For example Doi Inthanon, Khao Sok, Erawan National Park. Typically ranging from 100THB - 400THB (approx £2.35 - £9.50) per person, payable locally. Subject to change.