Most tourists use a charter boat from the docks at Ranong and it takes 30 to 40 minutes from Ranong to Kawthaung. Many travelers in Thailand do this to prolong their visa-free stays in Thailand. Contact a travel agent in Ranong and you’ll get a seat in a boat for 400 baht. This does not include visa fees but does include transport to the dock in Kawthaung. The fare must be paid in unspoiled and spotless Thai baht or USD; even the slightest stain or tear in the currency note will be rejected. No change will be given at the immigration office so it would be wise to arrange your pristine currency notes and bring appropriate change.
Make sure you receive on your passport an entry stamp from the immigration office near the main pier when you’re crossing the border from Thailand to Kawthaung. If you plan to go further in the country of Myanmar, a Myanmar visa is a necessary which can be obtained from the Myanmar Embassy in Bangkok.
The most fetching voyage into Myanmar is the Kawthaung border crossing voyage. Get into a long-tail boat and start sailing; this will be approximately a 25-minute journey to Kawthaung. After getting dropped off, a KBZ Bank in Kawthaung can be found which has the availability of an ATM as well as money exchange. Nevertheless, baht is also accepted in this part of the country but prices are relatively high if things are bought with baht. Beware! Thai immigrant
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