You fall prey to an Appeal to Popularity when you accept the truth of a proposition because of its appeal to a particular group or some large (typically majority) of people without supporting evidence for that proposition. A proposition may in fact be true when a large group of people believe it, but not because a large group of people believe it.
Zombie: I'd like to go caching at Mount Hummunum Park today.
Dragonfly: I was sort of wanting to go to the coast. Sea Wave Park has some caches in it too.
Zombie: But Mount Hummunum Park has way more caches and besides, way more people go there so it must be a better place to cache.
This series of caches is dedicated to each of 20 different logical fallacies, one for each fallacy. The 20 fallacies in this series do not represent all the possible fallacies but should provide a good start for any student of logic.
In addition to the 20 Logical Fallacy Series caches, there is a series final: "20 Logical Fallacies: Series Final" (GC3W7C7). The cache description in the series final contains a list of the 20 caches in the series, their names and GC numbers for easy reference.
If possible, you want to read the description of the final before logging any of the 20 caches in the series as that description contains instructions on how to arrive at the final's coordinates!
Team ZombieDragonfly hopes you enjoy the tour of some of the less frequently visited parts of Annadel State Park (and the one cache which takes you outside the park) and, who knows, you just may learn a thing or two about logic!
This four-stage multi-cache will take you to at least four distinct areas in Annadel Park: Warren Richardson Trail, Lawndale Trail, Ledson Marsh and Ridge Trail.
The first three stages are pretty easy to figure out (although the cache find may be a bit challenging for some of them). The final stage involves a relatively simple puzzle which some people will figure out in a minute while others may take a long time to figure out. The first time I ran into the puzzle I used here for the final stage, I was still in grammar school and it took me a while to figure it out... mostly because I was over-thinking the solution.
If you're hiking and want to attempt this cache in a single day, you should know some of the stages will involve a bit of leg work, the total distance for all four stages likely prohibiting doing this in a single day. Mountain bikers would have a better chance of covering all four stages in a single day.

You can validate your puzzle solution with certitude.