Internazionali

Alcuni link stranieri.
Mostra # 
1   Cave Exploration Group (South Australia) Incorporated   Cave Exploration Group (South Australia) Incorporated
The Cave Group for South Australia (inglese).
2   Caves   Caves
Raccolta di dati speleologici (inglese).
3   Speleoblog   Speleoblog
Il primo -2000 del mondo (russo).
4   The National Speleological Society   The National Speleological Society
With over 12,000 members and 200 grottos, the National Speleological Society does more than any other organization to study, explore, and conserve cave and karst resources; protect access to caves; encourage responsible management of caves and their unique environments; and promote responsible caving.
5   FPE - Federação Portuguesa de Espeleologia   FPE - Federação Portuguesa de Espeleologia
FPE - Federação Portuguesa de Espeleologia
Federazione Portoghese di Speleologia