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Current as of July 2026. On Saturday, December 19, 2026, the “Nang Len 10” (นั่งเล่น 10) festival will take place in Khao Yai. This is the anniversary 10th edition of a popular Thai open-air festival by the team of GMM SHOW and the production bureau IDEA FACT. The venue is unchanged from previous editions: Thongsomboon Club (ทองสมบูรณ์คลับ) in the mountains of Nakhon Ratchasima, in the Isan region of northeastern Thailand. This year the organizers chose the theme “INTO THE BLOOM”: the stage, walkways, and rest areas will be decorated with flower fields, and guests are invited to follow a “Bohemian” dress code. The lineup features stars of Thai pop and indie music led by BILLKIN and JEFF SATUR. Below we cover when the program starts, how to get there, and what to keep in mind before your trip.
What is this festival?
“Nang Len” translates from Thai as something like “sit back and relax,” and the name lives up to the festival from the very first edition. The series started as an intimate music weekend in nature, away from noisy Bangkok: the idea was not to “let loose” but to calmly sit with friends under the open sky and listen to favorite artists. Over ten years, the format has grown into one of the most recognizable open-air festivals in northeast Thailand, while keeping its original atmosphere — no crowding, a focus on nature and panoramic views of the mountains.
The organizer is GMM SHOW, a major Thai producer of live shows, and this year the production is overseen by the IDEA FACT team. The general sponsor is Chang Cold Brew Cool Club. The anniversary tenth edition is positioned as one of the main end-of-year music open-air festivals in Thailand, alongside large-scale events such as Tomorrowland in Thailand 2026 · RU, although in spirit Nang Len is closer to an intimate open-air festival than to an electronic mega-show.
By the way, the festival’s value lies not only in its lineup: each year the organizers focus on a visual concept — in 2026 it is the flower theme “INTO THE BLOOM,” turning the venue into a living photo zone among the mountains.
When and where it takes place 📋
The Nang Len 10 festival takes place on December 19, 2026 — a one-day event on Saturday. At the time this material was prepared, the organizers had not published the exact start and end times of the program: according to the event description, the show runs from daytime until late evening, and the sunset and starry sky over the mountains are part of the festival’s stated atmosphere.
The venue is fixed — Thongsomboon Club (ทองสมบูรณ์คลับ) in the Khao Yai area, Nakhon Ratchasima Province, northeast Thailand (Isan). This is the permanent venue of the entire Nang Len series: the stage stands along a mountain ridge, and the audience area is right on the grass. The festival publishes current announcements on the official Facebook page.
The date is fixed and not tied to the lunar calendar or seasonal holidays — the organizers chose a Saturday in mid-December, the height of the cool season in Khao Yai. If you are planning a trip around Thailand for the end of the year, check our calendar of Thai events and holidays — it also lists other December dates.
Traditions and how it is celebrated 🎉
The main theme of the anniversary edition — «INTO THE BLOOM». Walkways, relaxation areas and the stage itself will be decorated with flower fields, and guests are invited to dress in the style of «Bohemian» — loose silhouettes, natural fabrics and flowers in the hair. Thoughtfully designed photo zones will be set up across the venue, which is a separate reason to bring a camera or a phone with a fully charged battery.
The music part features a panoramic stage along the mountains with full production: lighting, sound and special effects, as at major concerts. The anniversary edition’s lineup includes BILLKIN, JEFF SATUR, NONT TANONT, PIXXIE, KLEAR, THREE MAN DOWN, JOEY PHUWASIT, BIG ASS and TAITOSMITH. Between sets and after the main program, DJ AUTTABOM plays, and the evening closes with a set by TONG APOLLO.
Besides the concert, additional activities run on site: body and face art, braiding, a DIY keychain workshop and a free photo service for guests (registration right on site). It’s hard to go hungry — the festival has more than 50 food and drink stalls, from Thai street food to coffee and desserts. The event also has its own recognizable Thai hashtag — #นั่งที่ไหนก็ไม่สบายเท่านั่งที่นั่งเล่น, which roughly translates as “nowhere sits as comfortably as at "Nang Len".”
Practical tips for travelers ✈️
How to get there. Khao Yai is a mountain area in Nakhon Ratchasima Province, about a couple of hours’ drive from Bangkok by highway; it is best to check the specific transfer route to the Thongsomboon Club venue with the organizers closer to the date. Given the all-day-in-nature format, it is wise to allow extra time for the trip, as traffic jams on the access roads are possible on festival day.
What to bring. Evenings in Khao Yai are noticeably cooler than on the coast, so a light jacket or cardigan will come in handy closer to night. During the day, on the other hand, a sun hat and sunscreen are useful. The venue is open grass, so comfortable closed shoes matter more than fashionable ones: they help with the “Bohemian” dress code and with comfort all day.
Cost. The exact ticket price for the anniversary edition has not been officially confirmed at the time of preparing this material — check current prices and seat availability on the official Ticketier ticket sales website.
By the way, if you decide to stay in the Khao Yai area longer, keep in mind that the popular tourist spring Nam Phut is currently closed for reconstruction — details are in the article “Nam Phut Spring at Khao Yai Is Closing for 2 Years” · RU.
Frequently Asked Questions ❓
When is the Nang Len 10 festival?
The festival takes place on Saturday, December 19, 2026. It is a one-day event at Thongsomboon Club in Khao Yai. The organizers have not published the official start and end times: the show is advertised as running “from daytime until late evening.”
How much are tickets?
The exact ticket price for the anniversary tenth edition has not been officially confirmed at the time of preparing this material. For current prices and seat availability, see the official Ticketier ticket sales website.
Where exactly is the festival held?
The venue is Thongsomboon Club in the Khao Yai area, Nakhon Ratchasima Province, northeast Thailand. It is the permanent venue for the entire Nang Len festival series, with a panoramic stage along the mountains.
Who will perform at the Nang Len 10 festival?
The lineup includes BILLKIN, JEFF SATUR, NONT TANONT, PIXXIE, KLEAR, THREE MAN DOWN, JOEY PHUWASIT, BIG ASS and TAITOSMITH, as well as DJ sets by AUTTABOM and the evening-closing set by TONG APOLLO.
What is the dress code and decor theme this year?
The theme of the anniversary edition is “INTO THE BLOOM”: the venue will be decorated with flower fields and thoughtfully designed photo zones. Guests are invited to dress in the “Bohemian” style — loose clothing made of natural fabrics and floral accents in the outfit.
Conclusion
Nang Len 10 is a rare chance to see the Thai pop scene not in concrete Bangkok, but on the grass among the mountains of Khao Yai, under the sunset and starry sky. If you love a mix of music, nature and beautiful photo zones, bring a warm sweater for the evening and keep an eye on tickets on the official website: the anniversary edition is sure to draw a full venue.