Marin School in Albany will hold its 18th annual "Chalk-It-Up" festival, from 10 a.m. to 3 p.m. Saturday at the school - 1001 Sante Fe Avenue. The festival is a fundraising event to benefit the schools fine arts materials. For $10 participants can buy a cement square for the day, along with a box of 24 chalk pastels. The chalk is yours to keep! Refreshments will be available. Come by anytime and create!