it is best to avoid the micros till you get more experience in. You are lucky you only have to drive 3 miles now to find a regular. To find a regular that I haven't already found now I have to go at least 15-20 miles.
Micros in the woods don't make a whole lot of sense at times. There are a few in this same park, but they are not impossible to find, heck the stages of that multi are micros.
There's a lot of debate in the geocaching world on regular vs. micro, personally I can see what some people have wrong with them when the micro is poorly done, but I've seen a lot that were extremely well executed. I live in an area full of good cachers fortunately.
Basically for these tiny containers you have to cut a small roll of paper and roll it up for a log. It's hard to put the log back in, but I wouldn't have bought these containers if I hadn't enjoyed finding ones like it already, these are great for spots where larger caches will likely get muggled, one of these is going in just such a spot. A small park, there is pretty much no place to hide a larger cache in this park unfortunately, but one of these should be "muggle proof" there.