Tomorrowland is taking Shanghai below the surface. On October 17–18, The Magic of Tomorrowland returns to Hero Dome as Planaxis: a two-day indoor world of giant shells, seahorses and deep-sea spectacle. Axwell, Lost Frequencies and MORTEN lead Saturday; Tiësto, Alison Wonderland, Miss Monique and ARTBAT b2b R3HAB take Sunday. After last year’s sold-out China debut, the scale is rising—two lineups, one submerged universe.