Start the morning of December 31 with costume rental. CHUT THAI (08:30) is near Tha Phae Gate and Absolute Thai (09:00) is in the heart of the Old Town, with different deposit and arrival rules.
By day, the Fahlanna Art Museum in the Old City (10:00-19:00) offers Lanna architecture and interactive exhibits. A regular closing day applies, so check your date. The Night Safari in Hang Dong (11:00-22:00) is a 60-minute tram with a 11:00 same-day booking cutoff.
In the evening, the Siam Dragon Show (20:00-21:10) fills the time before the countdown briefly. At 70 minutes, it leaves room for what comes next.
At night there are two Muay Thai venues. Chiang Mai Boxing Stadium starts at 21:00 Monday to Saturday with mostly local fighters, while Thaphae Boxing Stadium runs 21:00-23:30 and cannot be cancelled, refunded or rescheduled once confirmed.
Before booking, confirm the refund terms, deposit and same-day cutoff on each listing. Hours can change with on-site circumstances.