This adventure is set on Planet Erde. Known Erde comprises one major continent toward the north (mountward, in local parlance) and an ocean to the south (seaward). There is a large island off the coast in the west (moonward) and a major island system toward the east (sunward); several major mountain ranges divide the continent. Here is a geographical/climatological map, showing the equivalent of about 1100 walks by 800 walks: