The Fitness Center at The Siam

"Fitness fanatics should sign up for personal Thai boxing lessons; the small but well-equipped gym has a mini Muay Thai ring"

"Just 39 plush, spacious rooms occupy this vast property, which is scattered with pieces from the owners' art collection and has everything from an infinity pool to multiple dining venues to a library, cinema, gym, and spa -- while maintaining an intimate vibe"

"Full-day lessons are offered at the authentic Muay Thai boxing gym, and dinner at the Chon Thai restaurant is not to be missed"

"Personal trainers are on hand to assist (in the gym, not the monastery), and the local kickboxing camp that the hotel partners with is certainly a unique experience"

"I suggest a swim before breakfast and that you try kickboxing in one of the best-equipped hotel gyms I’ve seen – how many places offer a proper Muay Thai boxing ring? Late afternoon and we head to the Opium Spa to find ourselves in a different tranquility"