Kingsday the biggest party in The Netherlands is celebrated april 27th. If april 27th is a sunday then the celebration is at april 26th. Check the agenda with Kingsday- and night parties
Bloemendaal at sea (summer)
Bloemendaal at sea (25 km from Amsterdam) is one of the most popular beachdestinations in The Netherlands during summer. Understandable because of the famous beachparties every sunday. You can go there by car or public transport.