Dutch is the primary language, but English is widely understood in shops and restaurants.
Dutch is the official and primary language spoken in Historisch Katwijk and throughout the Netherlands. However, due to the prevalence of tourism and high English proficiency in the Netherlands, English is widely understood and spoken by staff in shops, restaurants, and other service-oriented establishments. German is also often understood, especially by older generations or those working in tourism, given the proximity to Germany. Communication in major European languages usually presents no significant issues for visitors.