Your posts are pure pedantic toxicity but I'll reply one more time, the second post in this thread is about Thailand and Vietnam. I was quickly making a reply so I abbreviated them as SEA. I didn't put much thought into it. So I edited it later to what I should have posted a few days later. You don't need to try to bring up the edit like you caught me in the act or something. It's noted and timestamped
So yeah, the main point I tried to make remains: If making beach plans, be aware of what season it is in your destination. Be it Vietnam, Thailand, or Bali or whatever else.