You will get the most out of this event if you have a compatible Garmin device or Smart Phone app.
For Android phones, the WhereYouGo app can be downloaded at home from the Play store before you come out.
For iPhones, the app is Wherigo.
You can also check out https://coord.info/GC78DF9 to download a cartridge. This can be done at the park on a smart phone, but will require you to use data.
If you don't have a smart phone or compatible GPS you can still come out and join along with someone who does have one.
If you choose to walk through the trails and find the Wherigo cache at the end of the event it will take approximately 1 hour.
I will have a limited supply of Mega event coins to sell at $15 each for anyone who didn't get one at the event.