Furthur is a retrofitted school bus purchased by author Ken Kesey in 1964[3] to carry his "Merry Band of Pranksters" cross-country.

The bus was also featured in Tom Wolfe's 1968 book The Electric Kool-Aid Acid Test.

[4] In Summer of 2014,[3] Zane Kesey, son of Ken, took a replica of Furthur on the first major trip since Ken took the bus to Europe in 1999, on a 15,000 mile tour[5] of the United States, stopping at music festivals and other events.

The bus makes stops at The Chapel of Sacred Mirrors - Alex Grey and Allyson Grey's art sanctuary,[6] Millbrook, New York, the infamous home of Timothy Leary and Woodstock's 45th anniversary.

[3] The filmmakers later made 6 trips to complete the film, including visiting Burning Man festival.