Distance: 4 miles
After a rain, take advantage of the freshwater flow and trek to a natural swimming hole. Starting from the back of the popular Aiea Loop Trail, descend through strawberry guava, paperbark, ironwood, and Pukiawe trees before reaching an unfortunately koala-less eucalyptus grove. Traverse a rocky slope through a patch of mountain apple trees (ripe for picking during summer months), then you’ll hit a meandering stream. Make your way up the stream, cross it no less than eight times, take a moment to think about how awesome Hawaii is, and then you’ll come face to face with a rushing waterfall, shaded by banyan and mango trees.