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you are correct, i was wrong. adjusting!

*i mean, i think i say: "over the knees", but in fact it must be "over the ankles" even.

So yeah in general visiting temples for example to visit the Grand Palace has the most strictest ones applied, which are a good base to go from:

Excerpt from this site:

Here is the list of prohibited outfits for both men and women in the Grand Palace compound:

  • Hats
  • Sleeveless shirts
  • Vests
  • Short tops
  • See-through shirts
  • Shorts and even shortened pants
  • Tight pants such as leggings
  • Torn pants
  • Miniskirts
  • Sandals without ankle or heel straps

I'll research if I can get a stash of sarongs somewhere.

I was wearing such thing, below the knees, but with some part of legs exposed, seemed fine, but for grand palace should be more strict.