6. Natural Bridge-Caverns at Natural Bridge are the deepest caverns on the East Coast and go 34 stories underground below the earth's surface to see nature's magnificent underground landscape of dripstone, flowstone, draperies, pools, stalactites, and stalagmites.
Location: Between PuÊ»upoa and Makahoa Points, Hanalei. Description: Hanalei Bay, the largest bay on KauaÊ»i, is bordered by a white sand beach approximately two miles long and 125 feet wide. The beach is located between Hanalei River to the east and Waipa River to the west.
Glass Beach (Hanapepe, Hawaii) Glass Beach is a beach in Hanapepe, an industrial area in Kauai, Hawaii that is made of sea glass. It is in Hanapepe Bay, near Port Allen Harbor. The beach's regular rock is basalt, but the sea glass formed after years of discarded glass. There are similar beaches in Fort Bragg, California and Benicia, California.