No. Many of our artifacts are small. To allow everyone a chance to see and enjoy our collections safely, we schedule groups to avoid crowding. We do our best to avoid double-booking groups in the museum, guided or not. In order to ensure that there will be space for your group and to maximize the benefits of your visit, please contact the Education Department as far in advance as possible: kelsey.ed@umich.edu or (734) 647-4167.