The sites are nice, you actually get to snorkel for an hour or two in total. If they say 1-2 meter waves, don't go! It was a very stressful 2h boat trip, with half the boat getting seasick... My family and I are usually very relaxed, but this was a hard, bumpy ride. The boat captain was thankfully very skillful, but it's just not worth having to worry on your vacations and spending an hour in Koh Nangyuan recovering.
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