Plans first submitted in July 2019 revealed that LEGOLAND Windsor were planning to redevelop Adventure Land, including the addition of an indoor attraction and drop tower rides. Although originally due to be based on THE LEGO® MOVIE™, revised plans submitted in July 2020 indicated that the area would adopt a different theme. In October 2020, it was announced that the new land will be called Mythica, a parallel universe where mythical creatures come to life before your eyes.
Construction is now well underway for the land now known as Mythica – World of Mythical Creatures. The construction walls have been pushed out further than earlier in the season, which makes getting close to the new area more difficult. The large building which will contain the flying theatre attraction is now visible from two areas; Mia’s Riding Adventure, and on the opposite side of the lake by the LEGOLAND Resort Hotel. The structure is yet to receive its front facade. The former Harbourside Fish & Chips restaurant has been stripped out, with its exterior facade removed. A new footer has been laid at the front of the area for what may be an entrance sign, welcoming guests to the area. The concrete foundations are now in place for the two drop towers, located between the flying theatre building and the attraction formerly named S.Q.U.I.D Surfer. The rock work which surrounds the queue line of S.Q.U.I.D Surfer has been repainted from a brown to a grey colour scheme, featuring blue veins and sections that have broken away, seemingly giving the impression that the area’s geology is LEGO-based.