Feasible trip itineraries using only Pasporta Servo?

Question

What regions of the world make a good target for backpacking-style travel using only Pasporta Servo and public transportation (no car-renting)? Europe seems to be the most densely populated with hosts according to the Pasporta Servo Monda Mapo:

• 1000 for Central Europe
• 250 for South America
• 200 for North America
• 100 for China

What are some feasible trip itineraries?

Answer 1

I'm in the US and routinely receive guests who arrive by public transport. Pick your area of interest, contact hosts, go there, and be flexible. It will be great.