Bangkok's upmarket Em District — the trio of Emporium, EmQuartier and Emsphere malls on Sukhumvit Road — has gone full haunted carnival this week, with a Halloween programme running through Saturday that mixes family-friendly parades, costume competitions, spooky dining and late-night atmosphere.

The centrepiece is "Em Wonderland: Calling All Clowns of KBK", a mystery carnival-world takeover at Wonder Space on the fifth floor of Emsphere. It runs daily at 6pm and sets the eerie carnival theme that carries through the rest of the district, from decorations to shopping and dining tie-ins.

Competitive costume fans have one big shot: the Haunted Carnival Costume Contest on Saturday. Applications close at 6pm, winners are announced at 11pm, and there's a total prize pool worth more than 50,000 baht in cash and exclusive perks. Earlier the same day, families get their turn — a Spooky Carnival Parade featuring kids in imaginative costumes winds through Emsphere and EmQuartier at 3pm, with themed children's activities on the same floor over the weekend.

Food is a major draw too. The EmDining Taste of Halloween spans the district's restaurants, serving Halloween-inspired dishes and drinks alongside special offers from popular eateries across Emporium, EmQuartier and Emsphere. Shoppers aren't left out: selected fashion brands and stores have dressed their spaces with a spooky-charm aesthetic and are curating home decor and lifestyle pieces for anyone wanting to build their own Halloween look at home.

For fitness enthusiasts, there's an extra twist — the "Em-Ribo Halloween Dance", a wicked themed Zumba session at nearby Benchasiri Park. It runs until Friday, starting at 6pm, with participants encouraged to show up in creative costumes. The park sits right next to the mall complex, so it's easy to pair a workout with dinner and shopping afterwards.

Why it matters for travellers: if you're in Bangkok in late October, this is one of the city's most accessible Halloween events — free to wander, right on the BTS Skytrain line at Phrom Phong, and covering everything from kid-friendly afternoon parades to an adults-allowed costume contest at night. It's a good excuse to see a different side of Bangkok's mall culture, where seasonal festivals are staged at full production scale. Arrive early on Saturday if you want to enter the contest, and stick around for the 11pm results if you're just there for the spectacle.