geology 5 types of rock you’ll encounter when climbing outdoors We get to grips with five of the most common rocks for climbing, plus a geologist’s take on what to expect when you start adventuring vertically What are hoodoos? Learn all about the fascinating natural rock formations that make your desert adventures extra special Advnture NewsletterAll the latest inspiration, tips and guides to help you plan your next Advnture!Contact me with news and offers from other Future brandsReceive email from us on behalf of our trusted partners or sponsors MOST READ1Colfax Marathon runners have near miss as stolen car veers onto route2Enraged moose send careless hiker running for his life at Yellowstone National Park3British runner claims world record for running a marathon in Crocs4The 11 worst things to take camping at a music festival, according to an expert5"To put your child in danger like that is unbelievable" – tourists interrupt alligator's meal to snap pictures in Florida Everglades