Amsterdam Hash House Harriers: The official site with news and information. Home of the Carnaval Hash in Maastricht.Assen Hash House Harriers: Assen Hash House Harriers, the oldest hash in The Netherlands, have existed since April 1982. No membership, no obligations, just a combination of fun and sports. One of the 2000 chapters that are spread out over the globe.The Hague Hash House Harriers: They have been laying trail in and around the Hague since 1982. Includes contacts, schedules, news, photos, and links.