Allison having a swim. We swam all weekend long but you won't catch too many Taiwanese in the lake. Several stories say that the lake is haunted by 'ghosts' from a busload of Japanese tourists who perished in an accident many years before. Others say the lake is filled with piranas so they stay away. We swam without any problems but we did get some 'you guys are absolutely crazy' stares from the Taiwanese on the dock.