Geocaching is a global treasure hunting game where participants locate hidden containers, called geocaches, outdoors and then share their experiences online.

Now you can experience geocaching on the Apple iPhone.

How It Works
The iPhone 3G uses a combination of GPS, Wi-Fi positioning and cell towers to determine your approximate location. Groundspeak's iPhone Application then queries the Geocaching.com database in real-time and provides a list of geocaches near you.

Available in English, Dutch, French, German and Japanese language versions.

Screenshots and Features


Instant, direct access to Geocaching.com's database of worldwide geocaches

Search by current location, address or GC code
Filter your hides and finds from the Geocaching.com search results
Access geocache details, including description, recent logs, hint and inventory
Look up trackable item details, including item goals, while on the trail
Save geocache listings for quick retrieval
Log geocache finds and post notes in the field
Download active pocket queries for use while outside of network coverage


Advanced navigation capabilities

View nearby caches on the embedded map
View cache size, terrain and difficulty rating directly from the map screen
Navigate to geocaches with a simulated compass arrow or directly from the map screen
Add custom waypoints when navigating to multi-caches
Switch between street, topographic and satellite maps
Supported Devices
Groundspeak's Geocaching Application is best supported by the iPhone 3G but is also compatible with the iPod Touch and 1st generation iPhones.

Please note: You will need Wi-Fi access for the application to work on the iPod Touch. Also, without GPS, compass navigation will not work on the 1st generation iPhone.

REQUIREMENTS:
Compatible with iPhone and iPod touch
Requires iPhone OS 2.2.1 or later

Author: http://www.geocaching.com/iphone/