The Grateful Dead's band, memories...

In the super Buick old fashion car, we keep listening to the neighbour's CD which was inside at the begining : music of the Grateful Dead.
With this music, a lot of memories come out. Twenty years ago, during my trip around the world with my bestfriend, we stopped at San Francisco. We didn't visit this wonderful town because we met an American guy who proposed us to drive us in his van to see a Grateful Dead's concert. We arrived in the afternoon in a big wide space, a lot of "deadheads" (followers of the Grateful Dead during the summer) were all around, they looked like "hyppie". We heard the concert from the outside, it was incredible, an overwhelming event !