Try Muay Thai properly in a single afternoon session without committing to a week-long camp.
Typically 2 hours: warm-up, technique basics (stance, jab, cross, kick), pad work with a trainer, bag work, cool-down; equipment provided.
Walk-in often fine at larger camps; book online or by phone for smaller more specialised camps; specify 'beginner drop-in'.
Typically 2 hours covering stance and guard, basic strikes (jab, cross, teep, round kick), pad work with a trainer, and light bag work — equipment is provided, so no gear purchase needed for a one-off try.
Complete beginners specifically — trainers at tourist-friendly gyms are experienced with people who've never thrown a punch before, and the pace is scaled accordingly rather than assuming prior fitness or technique.
300–600 THB per session at most tourist-oriented camps — considerably cheaper than a multi-day package, and a sensible way to test interest before committing to a longer training week.
Athletic shorts or leggings and a t-shirt are fine — most camps provide gloves and wraps for a single session, so no special gear purchase is needed beforehand.
Sukhumvit and Silom both have several tourist-friendly gyms offering drop-in sessions — checking recent reviews for a specific gym's beginner-friendliness is worth the extra few minutes before booking.