If you're like most gaming groups, you can just go with the worst plan so that when you have to fall back to plan B things will start to go better.
Madness string 111955
The Chesapeake bay was once so full of oysters you couldn't sail in it enough. Natives regularly ate oysters so large that colonists said they used the shells as dinner plates - we've found oyster shells 7 inches long. But now, the biggest oysters are a fraction of that size, and if we had seen the original oyster population we'd call them critically endangered.