If you're looking to explore the hidden treasures below the surface, underwater cave adventures are as unique as they come ...

Those who hike along the park's primary trail (which traces the coast past the black sand beach) will discover Wai'anapanapa's two freshwater caves. According to Hawaiian legend, these caves were ...

Some species of copepods found in mixed sea and freshwater caves (anchialine caves) are unusually primitive and provide clues as to how copepods began their invasion of the oceans. We have collected ...