Australasian Leisure Management Magazine. Anantara Siam Bangkok Hotel has unveiled a redesigned fitness and wellness facility featuring Technogym’s latest connected training equipment, following the completion of a US$50 million. The Anantara Siam Bangkok Hotel has entered a new chapter following a comprehensive US$50 million (1.6 billion baht) enhancement. The newly-reimagined Anantara Siam strengthens its position as.