Being adorned with proper shoes is the key to having a successful rock climbing adventure. If your shoes require you to wear socks go for the thinner, softer ones and not the thick socks. When rock climbing, one other major gear to carry around is a chalk bag and then, you can head out. If you are a professional rock climber who is planning on attempting more thrilling climbs then you might also need a harness, a chalk bag and a few other devices. Since rock climbing is one of the most popular things to do in Nizwa, you will be able to rent these things at any local sports centre. You could ask the hotel of your stay, Anantara Al Jabal Al Akhdar Resort, for instance, directions to the nearest place that rents out rock climbing gear as stated above.