This is my 2016 rock climbing and deep water soloing guide of Ha Long Bay, Lan Ha Bay, and Cat Ba Island. The region’s first updated climbing guidebook since 2008. It contains 72 sport climbing routes on 3 crags on Cat Ba Island, 58 sport climbing routes on 10 crags in the bay, and 239 deep water solo routes on 24 crags. It was commissioned by Asia Outdoors, the main provider of climbing and outdoor activities on Cat Ba Island. Visit www.asiaoutdoors.com.vn for more information.