Southern California’s largest winter festival returns to Costa Mesa, bringing winter fun for all ages! Winter Fest OC transforms OC Fair & Event Center into a magical winter wonderland with the region’s only outdoor ice-skating trail, ice tubing slide, and a real snow play area filled with endless delights. From free play to snowball throwing zones, sledding for the little ones, and a mesmerizing snow carousel, Winter Fest OC offers a winter wonderland like no other.