This post focuses on The Sprinkler. Yes, those little black sprinklers that you see all over lawns and parks and fields can actually be geocaches. So you have to build up that geosense to know when to go and twizzle that sprinkler and when to leave it alone.
When a sprinkler is in the middle of nowhere, like the example shown below, you might want to have you geosense get triggered. Would there even be any need for irrigation in a wildlife preserve?
As you get closer to the sprinkler, take a look and see if it has any puddles of water from leaks, or maybe a sign it has been handled by people on a regular basis liek this one.
Then go ahead and try and open up the sprinkler. The head may screw off for some geocache types or others you might need to pull up from the ground and the geocache will be on the inside. One thing you need with a sprinkler system is some way to keep the geocache dry…