CAPTION ONLY: YOUTHS PARADE DOWN MAIN STREET

Samoan members of the Salt Lake Hunter LDS Stake stroll down Main Street during the annual Days of '47 Youth Parade Saturday in Salt Lake City. Hundreds of tots - accompanied by their parents - watched as more than 4,000 costumed children, floats and clowns, turned Main Street into a giant playground. The Youth Parade - billed as the nation's largest - and the Horse Parade, which was held Friday night, kicked off the annual celebration marking the arrival of the Mormon pioneers 146 years ago in the Salt Lake Valley. A week's worth of festivities will culminate Saturday with a sunrise service at the Tabernacle on Temple Square; the Deseret News Marathon and 10K run; the Days of '47 24th of July Pioneer Parade; and the Neighborhood Fair and fireworks at Liberty Park.