Tropical fish surround you as you snorkel near the shore.  Perhaps you'll see a sea turtle coming up for a breath before retuning to snack on seaweed.  In contrast, you can hike along the barren lava landscape and see evidence of how Native Hawaiians lived and thrived in such a seemingly harsh landscape.  Wander past the fish ponds that were constructed long ago to sustain the community and today provide refuge for endangered wetland birds.