When the Clue Stalls
Short, honest answers to the questions explorers ask most often. Missing yours? Send a route question.
What is geocaching?
An outdoor activity where you use GPS coordinates to find hidden containers, sign the logbook and record your find online. It began in May 2000, days after the United States ended Selective Availability, when Dave Ulmer hid the first container near Beavercreek, Oregon.
Do I need a dedicated GPS device?
No. A modern smartphone with offline maps handles most searches. Handheld receivers are useful for long days in woodland or hills where batteries, gloves and rain become issues. See Pack for the Search.
Why does my GPS jump around near the location?
Signals reflect off buildings, rock and wet foliage. Stop, let the reading settle, then approach from two or three directions and look for the area where readings agree.
Which coordinate format should I use?
Most listings use degrees and decimal minutes (for example N 51° 28.614 W 000° 00.030) on the WGS84 datum. Match your device to the listing. Our navigation guide explains conversions.
Do I need permission to hide a cache?
Yes. Listing services expect hiders to have permission from the landowner or manager, and many councils and trusts have their own application process.
What should I do if people see me searching?
Behave naturally, explain honestly if asked, or simply come back later. Never handle property such as meters, vehicles or locks.
What are trackables?
Tagged items with unique codes that travel between caches. If you pick one up, log it and move it on within a reasonable time; they are not swaps to keep.
I cannot solve a puzzle cache. What now?
Research the place’s history, re-read the listing, use any checksum checker offered, and politely ask the owner for a nudge. Never search guessed locations on private land.
Is geocaching safe for children?
With adult supervision and low-terrain caches in parks, it is a popular family activity. Steer clear of water edges, busy roads and steep ground.