Pre-registration is required for Free Day, sign-up here to reserve your entry time. All visitors to MASS MoCA over the age of 12 must show proof of a full COVID-19 vaccination (accompanied by a photo ID for visitors over 18).  Free for all who walk through the doors, MASS MoCA’s annual community celebration is brimming with gallery tours, live music, pop-up performances, fun photos, take-home art projects, and tons more to inspire and explore.