Luna Valetin has a strong love for spelunking and music that she turned it into a PhD degree. Here's how and why she's doing it.

Which backpacks for spelunking are best? Spelunking, also known as caving or potholing in some countries, is a unique way to explore the world around you. If you want to get underground, whether in ...

Which rope is best to use while spelunking? Spelunking would practically be impossible if you didn’t have some caving rope. Next to the proper boots and a helmet, the rope is only one of the few ...

Which helmets for spelunking are best? While spelunking can be considered dangerous, responsible decision-making and appropriate safety gear help keep the likelihood of a spelunking accident low. If ...

It’s a long way from the rag and bone men scouring urban alleys to the high-tech scrap and recycling operations of today ... or is it? For centuries enterprising folks have collected the cast-off ...