What paperwork is needed for a 30 day extension on a Thai entry visa?

To extend your original 30-day entry visa in Thailand by another 30 days, you'll typically need to prepare a few key documents. These may include your passport (with the original visa entry stamp), a completed visa extension application form, a recent passport-sized photograph, and the applicable fee. It's also advisable to visit the immigration office in Jomtien to confirm any specific requirements or changes that may have occurred since your last visit.