Gateway Mall, Salt Lake City, UT. Please see our website, www.runsanta.com for all the details on this fun event! The Jolliest 5K in Utah. All registered runners get a full and complete Santa Suit to run this 5K in. Along the course you will find milk and cookie stops (with water) to aid the Santa’s on their journey. Christmas Music plays over head. This race is followed by a the Light Up the Night Ceremony and a concert at the Gateway Mall.