As part of the St Albans Christmas Cracker Street Festival, the Clock Tower will be open from 2pm to 6pm.
The Tower lights will be turned on by the Mayor of St Albans for a magical moment at 5pm.
Admission from 2pm until 4.30pm will be £1 for adults and accompanied children under 12 can gain entry for free.
Entry from 4.45pm until closure at 6pm will be limited to 20 visitors.
Advanced Tickets for this time slot will be on sale from 2pm at the Clock Tower, adults £5 and children £2.