This "secondary cache" can only be found with international team-working.
This cache is just one cache of a set of 30 caches named European IMC No. 1 … (IMC = International Multi-Cache). These caches are hidden in 15 European countries: Austria (A), Belgium (B), Denmark (DK), Finland (FIN), France (F), Germany (D), Great Britain (GB), Hungary (H), Ireland (IRL), Italy (I), Luxembourg (L), Netherlands (NL), Portugal (P), Spain (E) and Sweden (S). In each country there is a "primary cache" and a "secondary cache". The 15 primary caches are named "European IMC No.1 P-x - yyy" and the 15 secondary caches "European IMC No.1 S-x - zzz" where x is the country code given above and yyy and zzz can be any additional name. The primary caches are almost like traditional caches. The only difference is, that they contain beside the "normal" content (stash-note, logbook, pencil, give-aways) a "lists of hints" for the secondary caches. To be able to search and find a secondary cache you need all hints from all 15 primary caches! As the primary caches are scattered all over Europe it will either require a lot of travelling or - and that is the intention of the European IMC No. 1 - international cooperation: If you want to find this secondary cache, you should: 1. Find a primary European IMC No. 1 cache. 2. Contact finders of other primary European IMC No. 1 caches and exchange the hints. 3. Puzzle the hints together and … 4. … go and seek the secondary cache. The European IMC No. 1 team wish you good luck!"
Update Nov 4th 2005
You still need to find the original location, with the help of the international hints.
The cache has moved to a new location, that is very near to it's old hiding place : When you're standing at the indicated hiding place, walk some 15 paces North. The cache is now hidden at the base of this tree.