Tham Thong Lang Mine, Phang Nga Province

The old Thong Lang Mine, also known as the "Switzerland of Phang Nga," features crystal-clear blue water resembling a mirror, surrounded by pine forest-covered mountains that give off an international vibe. This location has become a new landmark that many people want to visit at least once to see it with their own eyes. It was previously a private mining site, and there are no fixed opening hours. It's best to check with locals before visiting to avoid disappointment. Photos taken here look stunningly international—it's hard to believe this is a spot in Thailand. There is no entrance fee, and free parking is available along the roadside.