14th century intruders were greeted with murder holes when storming this King’s Gate. For invited guests, however, this was the grand entrance to Caernarfon Castle. So if you want a tour of this Middle Ages’ fortress, you are welcomed to enter here. You first pass under the worn carving of King Edward II which was added in 1321. The same admission price lets you visit the Museum of the Royal Welsh Fusiliers. This displays military artifacts of Wale’s oldest infantry regiment. If you need help or suggestions while visiting Caernarfon, there is an information office located across from this gate on Castle Ditch. Their staff is friendly and knowledgeable.