Franz Lindenmayr / Mensch und Höhle

Die Modra spilja auf der Insel Bisevo

Literatur:

Bozic, Vlado ( ): The centenary of the Blue Cave, Isle of Bisevo, Yugoslavia, The British Caver, 96-1985, p 1ff.

Links:

https://bluecave-bisevo.com/

https://croatia.hr/hr-hr/nautika/modra-spilja-carstvo-morske-medvjedice

https://www.otok-hvar.hr/tours/modra-spilja-na-otoku-bisevo/HV-TR-4

https://www.showcaves.com/english/hr/showcaves/Modra.html

Die "Blauen Grotten" der Welt

Speläologisches in Kroatien