Climbing Up a Waterfall! A Great Journey Through the Land of Wano's Sea Zone! After reading about the Reverie in the newspaper, Luffy's group finds themselves in the perilous sea surrounding Wano Country, which leads to the bottom of a waterfall. Luffy uses the giant carp swimming around them to pull the crew and ship up the waterfall, but they end up sailing into a whirlpool at the top, causing Luffy to be submerged.