Come for a short guided tour of Knaresborough Castle's secret underground tunnel, the Sally Port. Once used to sneak in and out of the castle, or flea from an attack. Taking place Tuesday, Thursday and Saturdays during the summer holidays at 11am and 3pm. Built in the late 13th or mid-14th century, it is cut out of the solid rock and slopes steeply down to the level of the bottom of the dry moat or ditch, where there is an exit. Its entrance was likely to have hidden by a slab in the stone floor of a building, known only to a trusted few. The Sallyport is only accessible via stairs, and some of the path is slippery - sturdy footwear is advised. The sallyport is subject to low light levels. Additional information: These tours are subject to suitable weather conditions. If you wish to upgrade your ticket on the day to include entrance into the Castle and Court House Museum, please show your SallyPort ticket and receive 20% off the admission price.