In this section you will find a link to geocaching
http://www.geocaching.com/
In order to register an EARTHCACHE, you need to follow these steps:
Click: Play
Go to: hide and seek a cache - create a Geocache - already know your hiding spot? - continue -
Click the logo "earthcache"
REMEMBER:
An earthcache has to be a science lesson highlighting a unique feature .
Logging asks visitors to do a site-specific task which offers a learning opportunity.
It has to be submitted in the local language


Here's a link to earthcaching
http://www.earthcache.org/
Click on "getting started" and then "EarthCaching for teachers".