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Human Fish Watching


© Uroš Abram

Enter the fascinating and mysterious underground world of the Slovenian karst, where you can see the human fish in its natural environment.

The human fish, or proteus, is a 30 cm subterranean aquatic salamander that is both special and highly unusual. It can live up to 100 years in its natural habitat and can go without food for up to 14 years. A cave guide will take you underground to a karst cave where you will be able to see this unusual and very interesting animal. Seeing the human fish is definitely an experience and a memory you will keep for the rest of your life.

Price includes return transportation to Ljubljana, expert guidance in the cave, all required caving gear.


Every day at 9 am


4–5 hours

Number of participants

Minimum number of participants is 2, and maximum is 8

Starting point

Starting point is determined by prior agreement when signing up.

Language options

Slovenian and English
Italian by prior arrangement


  • Appropriate warm clothes are recommended as it is a constant 11°C in the cave
  • You will receive boots, a lamp, and a helmet at the cave entrance