The Butchart Gardens will officially flip the switch Dec. 1 for its 33rd annual Light Up to mark the start of the “Magic of Christmas” season. The annual Light Up will see the popular gardens decorated with thousands of Christmas lights.The event will also feature carolers and complimentary carousel rides. The carousel celebrates its 10th anniversary on Dec. 1. The Gardens is implementing a new pet policy prohibiting pets at the garden between 3 p.m. to 8 p.m, from Dec. 1 to Jan. 6. The lights will go on at 5 p.m. sharp Sunday night, with admission gates open until 9 p.m. and viewing until 10 p.m.