A fun activity for all the family using satellites circling 12,000 miles above the earth comes to Wicken Fen this Easter.

Geocaching is a popular worldwide game dedicated to GPS (Global Positioning System) users. The game involves searching for caches which have been hidden at secret locations in the countryside. The co-ordinates of each cache can be found on www.geocaching.com 

Wicken Fen Community Warden, Emma Shepherd spent the winter searching for places to hide the caches with the help of local geocaching enthusiasts and the Newmarket and District Explorer Scout group.

"Geocaching is an extremely popular recreational activity and a good example of how the National Trust is working hard to provide facilities and activities which will inspire families to get out and explore our magical countryside." said Emma.

Each cache contains a log book, as well as information on its location and a family-friendly activity to do. The caches are hidden near to public footpaths and are free to access at all times.

A GPS receiver is a handheld device which 'listens' to signals broadcast from a constellation of satellites orbiting high above the earth. From these signals, the GPS receiver is able to calculate its location anywhere on the planet to within around 5 metres. Once the GPS knows where it is, and where you want to go, it can point you to your destination. Basic GPS receivers can be purchased for around £80.

If you don't have a GPS receiver, or would like to know more before going solo, Emma Shepherd and local geocaching enthusiasts will be running taster sessions at Wicken Fen from 10am on Sunday 11 April. Contact Emma or the Visitor Centre on 01353 720274 to find out more or book a place.

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Notes to Editors
1. The National Trust is Europe's biggest conservation organisation and looks after special places across England, Wales and Northern Ireland for ever, for everyone. People and places are at the heart of everything it does. 3.5 million members, 50,000 volunteers, 500,000 school children, and millions of visitors, donors and supporters help the Trust look after its 300 historic houses and gardens, 700 miles of coastline and 250,000 hectares of open countryside. www.nationaltrust.org.uk 

2. The Global Positioning System (GPS) is made up of a network of 24 satellites placed into orbit by the United States Department of Defence. GPS was originally intended for military applications but in the 1980's was made available for civilian use. The 24 satellites orbit 12,000 miles above the earth travelling at a speed of 7,000 miles per hour.

3. As at 23 March 2010, there were 1,013,120 caches and an estimated 3-4 Million regular geocachers worldwide. See www.geocaching.com