There's a range of land border crossings between Thailand and Myanmar, but I'm having trouble finding solid info on them to choose which one to use.
I'll be coming from Krabi, so I want the closest border crossing. I don't care about which is most popular, easiest, etc. I just want the closest one, which means the one furthest to the south.
But one other thing is important. There are usually border crossings open only to locals, citizens of the countries either side of the border. And of course there are crossings open to everybody, including foreigners.
As a bonus, it used to be that there was a range of restrictions at some border crossings in Myanmar, such as that you had to return to Thailand via the same crossing, or that you weren't permitted to travel from there to arbitrary places in the country. I don't know if this is still the case but if it is, I'd like the crossing with the fewest restrictions.