2-dagers Natten Oppgradering - Slottsfjell 2026, taking place on 2026-07-09 at Kaldnes in the city of Tønsberg, will transform the waterfront into a lively cultural hub where music, art and nightlife meet against a historic coastal backdrop. The festival features multiple stages with a diverse lineup of local and international artists, immersive light and sound installations, late-night DJ sets and curated daytime programming that welcomes both families and night owls. Attendees can explore a variety of regional food and drink vendors, enjoy artist talks and workshops, and expect a strong focus on sustainability and accessibility across the site. Practical information about transport, accommodation and how to buy tickets is available online to make planning easy for visitors from across Norway and beyond, and organizers promise an engaging, memorable experience that celebrates Tønsberg’s vibrant summer scene.
