Manawaiopuna Falls is a beautiful scenic 360 foot high waterfall located in the south-central part of the island of Kauai, Hawaii. Manawaiopuna Falls used to be a secret waterfall in Hawaii but all that went out the window when a shot of Manawaiopuna Falls was used in the movie Jurassic Park. Now beautiful scenic Manawaiopuna Falls is a big tourist attraction on Kauai, Hawaii.