Yes, it is a public square and commercial area with no entry fee.
Entry to Historisch Katwijk is completely free. As a public square and the main shopping and social area of Katwijk aan Zee, there are no charges for walking through it or enjoying the atmosphere. You only pay for goods, services, food, or drinks you choose to purchase from the individual shops and establishments within the square. This makes it an accessible and budget-friendly destination for all visitors.