Just to let you know, not all national parks allow entry with a driving license for concession ticket. If you're a foreigner, you'll need to pay the foreign admission fee unless you can show a citizen ID card. However, if you have a Thai driving license, you're in luck! It not only allows you to drive, but it also serves as a valid form of photo ID for domestic flights and other activities, like checking into a hotel. No need to carry your passport with you all the time!

@Stuart *******

drop me a msg in inbox, i am currently on a road trip. Will get back to you thereafter.

@RV ************

This statement is correct and also there are agents who handle these 400k money case when you don't have it.

You could check out the Oriental Express voyages. I think it goes between Thailand to Singapore via Malaysia, never experienced but only heard about it.

@Matthew *******

accurate advice, if they get the chance then you might end up with unexpected bills when too involved than necessary

@Paddy ********

totally agree and it worked everywhere else too than Thailand the same process. I just cancel after I get the visa. And never had an issue.

You know this booking reservation copy can be an unpaid one. It can be your existing address too as a base. Govt. doesn't care where you travel to as long as there's an address where they can find you.

Getting in touch with an agent is a good idea because they can likely demonstrate the existence of the aforementioned THB 400,000 for you for less than $100 USD. Although I don't have that agent's contact info on me right now, a friend of mine has done something similar.

In Thailand you will need following apps in my experience:

Agoda for hotels & flights

Grab for taxi, food, parcel etc.

Haup car for instant self-drive car rentals

Shopee for shopping online at good deals