The Haight-Ashbury district of San Francisco was the official heart of the Summer of Love, the hippie mecca that attracted flower children from all over the country while repulsing the nation's squares.
Things got mighty freaky in Frisco during those free love days, and you could see all kinds of strange sights and interesting people on the sidewalks in and around Haight-Ashbury, making it a prime stop for a bus tour.
In 1967 San Francisco Chronicle reporter J. Campbell Bruce and photographer Art Frisch took a ride on one of these ridiculous Grey Lines bus tours dubbed the “Hippie Hop” to shoot some pics and show the world what the squares were squawking about.
This "descent into psychedelia" looks pretty tame to our modern eyes, but imagine the wonder and horror those (mostly Midwestern) squares felt when they saw what those hippies were up to on those acid soaked SF streets!
-Via Dangerous Minds