Annual music festival and sister event to Summer Sonic Tokyo. 1-day tickets cost ¥14,500 and 2-day tickets ¥25,500 (a slight discount to Tokyo), but you can pay extra for “Platinum Tickets” which come with various benefits such as an exclusive viewing stage, lounge, and cloakroom. Tickets can be purchased through the official sellers (eplus, Rakuten Ticket, and Ticket Flap).
Apart from the artists on the three stages with Maishima Sonic Park, there are a few events such as “Sonic Art” and the “Summer Sonic Girls”. Note that upon entry to the festival tickets are exchanged for wristbands which must be worn throughout the festival (no replacement policy—so keep them safe).
The venue is on an island in Osaka Bay and needs to be accessed by shuttle bus. For ¥800 you can get on the 15-minute shuttle from Universal City Station, but tickets for this need to be purchased in advance as spaces are limited. Otherwise, you can jump on the bus at Cosmo Square Ekimae Bus Stop on the day.