beg
This is a hike through private property which the owners are kind enough to provide access. Stop by the fruit stand they run at the entrance and share some aloha. Be respectful. There are more than two waterfalls here as the name may imply which means that even if the parking area is crowded, the waterfalls probably won't be.
open accessany vehicle
Mile marker 2 on the Road to Hana. Don't leave any valuables in the car as break-ins sometimes occur.