Manawaiopuna Falls (Jurassic Falls) is a giant of a waterfall: 400 ft (122 m) of falling water, among the tallest in the country and a standout horsetail waterfall in Hawaii. It ranks #23 by height among the waterfalls in this guide.

Manawaiopuna Falls (Jurassic Falls) sits on Hanapēpē River drainage (Hanapēpē Valley). You'll find it in Kauai, Hawaii. It is protected within Private property (Robinson family); access only by authorized helicopter tour.

This is a backcountry waterfall: a remote, long, or permit-required trek for prepared visitors. Base a visit out of ʻEleʻele / Hanapēpē, the closest town.

When to go: Year-round (flow varies). Like most waterfalls, Manawaiopuna Falls (Jurassic Falls) runs highest after snowmelt or heavy rain and can thin out in late summer, so it's worth checking recent streamflow and the land manager's conditions page before a long drive.