From the High Times Cannabis Cup to Spannabis Barcelona to Denver's 420 festival, cannabis culture has a global calendar of events. Here is the complete world guide.
The High Times Cannabis Cup, launched in Amsterdam in 1988 by editor Steve Hager, was the world’s first formalised cannabis quality competition. For over 20 years it was held exclusively in Amsterdam, where judges from around the world evaluated strains submitted by Dutch coffeeshops and breeders. The Cannabis Cup created the framework for strain competition that now underpins an entire sector of the cannabis industry. Winning a Cannabis Cup was commercially significant for breeders whose winning genetics commanded international premium prices. After Colorado and Washington legalised in 2012, High Times moved the Cup to the United States with events in Denver, San Francisco, Los Angeles, Detroit and elsewhere. The Amsterdam editions have also continued. The Cannabis Cup is now one of the largest cannabis industry events globally, with consumer and professional days, music performances, vendor exhibitions and cultivation demonstrations. Read the High Times history for how the Cup was born.
Spannabis, held annually in Barcelona, is Europe’s largest cannabis trade fair and cultural event. Launched in 2004, it attracts over 50,000 visitors over three days, with exhibitors including seed banks, cultivation equipment manufacturers, cannabis technology companies, legal advisors and media organisations. Spannabis operates as a trade fair and cultural event rather than a consumption event — cannabis is not consumed on the exhibition floor — but occurs in Barcelona, where the social club scene allows legal access for members. The event typically coincides with the Barcelona social club season and has strong synergy with the city’s cannabis tourism market. The Spannabis Champions Cup runs alongside the main fair as a strain competition. Explore the Barcelona context in our Barcelona social clubs guide and Barcelona travel guide.
April 20 has become a de facto global cannabis holiday. The largest gatherings are in legal jurisdictions: Denver’s Civic Center Park has hosted 80,000+ people in legal years. San Francisco’s Hippie Hill in Golden Gate Park has been the Bay Area’s gathering point since the counterculture era. Vancouver, Canada hosts large outdoor events since Canada’s national legalisation. In non-legal jurisdictions, 420 gatherings occur in public parks with varying levels of enforcement: London’s Hyde Park 420 gathering attracts thousands annually despite UK prohibition. These events function as political demonstrations as much as cultural celebrations — mass public cannabis use in jurisdictions where it remains illegal is a form of collective civil disobedience asserting that enforcement is impossible and illegitimate. Read the 420 origin story for the history behind the date.
The legalisation era has produced a substantial cannabis business conference industry. MJBizCon (Marijuana Business Conference) in Las Vegas attracts over 35,000 attendees and 1,500+ exhibitors annually and is the largest cannabis business event in the world. The Cannabis Conference, Hall of Flowers, and numerous state-specific events cater to cultivators, retailers, investors and ancillary businesses. European events include the Cannarada Summit in Germany and growing cannabis business conferences in countries with new medical or recreational frameworks. International cannabis events now occur in Israel, Australia, Colombia, Uruguay and Canada alongside the established European and North American circuit. Cannabis tourism has also become an event format: cannabis tours in Amsterdam, cannabis retreats in Jamaica and Colorado cannabis tourism experiences all package cannabis culture as a travel product. See our Amsterdam and Denver travel guides for cannabis tourism details. The legalisation movement context explains the growth of these events.
MJBizCon (Marijuana Business Conference) in Las Vegas is the largest cannabis industry trade event, with 35,000+ attendees. The High Times Cannabis Cup and Spannabis in Barcelona are the largest consumer-facing events with 50,000+ visitors each.
High Times Cannabis Cup events occur multiple times annually in different US locations and in Amsterdam. Check the High Times website for current schedules as dates change year to year.
420 refers to cannabis culture generally and April 20 (4/20) specifically as cannabis culture's informal holiday. Events occur worldwide on April 20. The largest are in Denver, San Francisco and Vancouver. See our full <a href="/culture/420-origin-story/">420 origin story</a>.
Spannabis has both trade days (industry professionals only) and public days open to adults over 18. Tickets are available online in advance. The event is held at the Fira de Cornella exhibition centre near Barcelona.
The UK holds the annual 420 gathering in Hyde Park, London, despite cannabis prohibition. 420 events also occur in Bristol, Manchester and Edinburgh. The Secret Garden Party and other festivals have had cannabis-friendly reputations. Cannabis business events operate openly in London as conferences discussing legal cannabis markets in other jurisdictions.