The Father of Modern Cave Exploring (Speleology) was Norbert Casteret (1897-1987), who was honoured with a stamp issued by France 18th September 2000.

• 父现代洞穴探险（洞穴）是诺伯Casteret （ 1897年至1987年） ，谁很荣幸与纪念邮票由法国2000年9月十八号。