Museum Minis Our popular free sessions for the Under 5s. The popular Museum Minis sessions take place in Dudley’s Den, our dedicated Under 5s area. Take part in fun, hands-on activities designed for you and your little ones to play and learn together. Sessions are free and suitable for the under 5s. Taking place on Wednesday’s and Friday’s during term time. There are two sessions each week: 10.30am Wednesday10.30am Friday No booking is required, just turn up. Please note that spaces are limited to a maximum of 20, including adults and children. “My son really enjoys Museum Minis and always looks forward to coming again.”Visitor feedback from Audience Finder.