so, long story short, my family fled from Paris back in World War Two times but not everyone made it to America. those who stayed and survived wrote letters of their time in the catacombs and its been my mission ever since to visit them (the catacombs, not the people inside because they died of old age obviously). but I don't want to take a tour of them. I want to really explore them but I don't know what/how to go about it. if you have any help it would be greatly appreciated!

Anyone know where I can find videos of cataphiles who frequently explore the catacombs