The hippie trail (also the overland) was an overland journey taken by members of the hippie subculture and others from the mid-1950s to the late 1970s travelling from Europe and West Asia through South Asia via countries such as Afghanistan, Pakistan, India, Nepal, Sri Lanka, Bangladesh to Thailand.
I also think this is the “Hippie Trail” referenced in Down Under by Colin Hay / Men at Work.
wp:Down Under (song)
https://en.wikipedia.org/wiki/Down_Under_(song)
😁🙂
🎵 Where women blow and men chunder 🎶