Petchnumnoi Gym (Singpatong)

Petchnumnoi Gym — better known to fight fans under its Singpatong Sitnumnoi name — is Patong's authentic Thai stable, a working fighters' gym in the streets above the beach that has produced multiple stadium champions. This is the counterpoint to Phuket's international camps. The core of the gym is its Thai fight team, from young boys to stadium-level professionals, and visitors train beside them under trainers whose job is producing champions rather than running a fitness class. The coaching is correspondingly traditional — long pad rounds, heavy clinch, and technique passed down rather than programd.

The group session runs in the late afternoon six days a week — mornings are for the fight team and privates — and foreigners of every level are welcome; the gym has cornered plenty of visiting fighters on Phuket's stadium cards, both of which are a few minutes away in Patong. Between sessions you are in the middle of the island's liveliest beach town, for better and worse.