This is the Wave Rock (Rock Ola) in Australia. Believed to be one of the oldest rocks on Earth, with million years. Its distinctive shape is caused by erosion of 60 million years. Photo: Getty Images rocks-minerals-gems-and-geology
How to Improve at Indoor Rock Climbing. Indoor rock climbing is a challenging sport, but it is also lots of fun. If you are new to indoor climbing or if you just want to improve your skills, there are several things that you can do.