I have very recently gotten into Geocaching with my wife. A buddy of mine talked us into trying it with him a week or so ago (it was his first time too) using his iPhone.
Today we drove down to a different city to move a coin we found and show our other mutual friend the fun.
Well, things didn't go great.
There were two city parks in her area full of caches. We wrote down the coords and any essential info we thought we might need and headed out.
However, in both parks our GPS was acting crazy. The point we were traveling to kept moving and never got closer. our direction kept shifting and I'm pretty sure (based on the clues in the cache description) the initial coordinates weren't correct.
Since we are new at this, young and low on money we have been using our Garmin Nuvi 255w in pedestrian mode. So far its worked well for us with urban caches and I ouldn't necessarily try to take it out to a big state park but surely it shouldn't go insane in a city parks, right?
(Maybe) Helpful details:
It was cloudy (I've read it shouldn't matter)
One of the parks just did a bunch of construction and added new paved trails.
We used it later to find a cache in the city, but the sun had come up a bit :/
Sorry if this question is awful. Its my first one, be gentle.
EDIT: If it matters I was looking for this guy the longest to give you an idea of geography