Head out to Fredrick, MD on April 20 to celebrate this unorthodox "holiday" at the Flying Dog Brewery. The party will feature live music by the Justin Kalk Orchestra and Safey Meeting, plenty of great beer, and theme-appropriate activiites like hula hoops, hacky sack and even a drum circle.

Your ticket is good for your first beer, and includes a special complimentary mug. (As a bonus, the tickets on MissionTix are priced at $11.50, so the listed $15 entry fee includes the extra fees. Nice!)

Event Date: 04/20
Event Time: 4:20-9 PM
Location: Flying Dog Brewery
Price: $15
Type: Beer
Website: flyingdogales.com/tickets-on-sale-for-holiday-420-at-the-brewery/