To help us create a meaningful visit for you, we ask that you arrange your visit at least two weeks in advance. To register, select the day you’d like to visit. From there, you can choose from all the available visit opportunities on that day. We typically update our calendar such that you can arrange a visit up to 60 days in advance. Trying to figure out when to visit? Here's a run-down of all the different activities you can do, depending on when you visit. Use the calendar to select the date you'd like to visit.