Climbing Cat Ba Island: Choosing Between Fisher, Hidden and Butterfly | Vietnam Climbing Crags
Cat Ba Island's 178 routes split into five sectors: Butterfly Valley is the biggest but has the oldest bolts, Fisher Valley was taken over by Cat Ba Climbing and has been rebolted and improved from the 2024 typhoon all the way through 2026, and Hidden Valley has overhanging roof routes and a small bouldering cave; permits cost 30,000 VND for Fisher and 50,000 VND for Hidden, Ben Beo has been closed by a government announcement, and a helmet is mandatory everywhere on the island.