Sans helmet.
During the 1970s, he was always portrayed as a gentle granola eating hippie "flower child" but that was probably not the case in real life.
I was very much a fan of his music until around the "Calypso" era. Then his stuff became more hypocritically Enviro-cheesy.
Reason I say hypocritically is because for all his protestation about environmentalism and air-pollution he tried to install huge gasoline fuel storage tanks on his mountaintop Colorado property during Carter's so-called "Energy crisis" for the purpose of stockpiling gasoline for himself and his own personal transportation purposes.
Guess he just didn't want to get caught in the gas lines we proletarian's and his album buyers had to put up with.
You'll likely recall how The Kinks memorialized this situation back then: "A Gallon of Gas" (1979)
FReegards!