Changes to Disney 's California Adventures open June 15 . The centerpiece , Cars Land , makes the most of the popular theme . Perhaps the main problem was that California Adventure was too nostalgic for the California of yesteryear , especially Paradise Pier . Building the park cost an estimated $ 1 billion .
Changes to Disney 's California Adventures open June 15 . The centerpiece , Cars Land , makes the most of the popular theme . Building the park cost an estimated $ 1 billion .