BlackLight CNX

Tucked along Ratvithi Road in the Si Phum area, BlackLight CNX has built a strong and consistent following among both Chiang Mai locals and international visitors. The blacklight concept gives the venue a distinctive visual atmosphere that sets it apart from the typical bar scene in the Old City, creating an energetic and social environment that tends to keep people staying longer than planned. The crowd here is genuinely mixed — backpackers, expats, and Thai regulars all share the same space, which makes it a naturally easy place to strike up a conversation. The bar sits comfortably within the nightlife and pub category, so visitors should come ready for drinks, music, and a lively evening rather than a quiet wind-down. The atmosphere leans upbeat and the vibe is casual, which keeps things accessible without feeling too loud or chaotic. Good to know: Opening hours are not listed online, so it is worth checking locally or asking at your accommodation before heading over. Dress code is relaxed, as is standard for bars in this part of Chiang Mai — smart casual or casual both work fine. The Ratvithi Road location is convenient for anyone already spending time in or around the Old City, making it a practical last stop after an evening exploring the neighbourhood.