In the Jungle
A small group of explorers braves the fog and finds a small jungle out there ... somewhere. They stay a couple days, collecting what supplies and samples they can before making the horrendous exhausting journey through the fog. After a couple dead ends and who knows how long pushing against the Fog, the group manages to make their way back to the switchback, with at least some supplies. And about 40% of the live plants they tried to bring back make it through alive. There is hope to be had and things to find, at least maybe so long as the lion sleeps.