Streams empty into the Pacific at sunset near Queen's Bath, a unique tide pool on the island of Kauaʻi, Hawaii. The pool is a sinkhole surrounded by igneous rock. It is located on the north shore of Kauaʻi in the town of Princeville. Small fish and tiny sea life also live in the tide pool, such as Hawaiʻian sea urchins, angelfish and the so-called "ghost fish". The original "Queen's Bath" was located in Kalapana on the Big Island of Hawaiʻi. It was formed after a lava tube collapsed and filled with fresh water supplied by natural springs.
The Kalalau Valley is located on the northwest side of the island of Kauaʻi in the state of Hawaiʻi. The valley is located in the Nā Pali Coast State Park and houses the Kalalau Beach. The Nā Pali Coast is rugged and is inaccessible to automobiles. The only legal ways to access the valley are by kayak or by hiking the Kalalau Trail. The valley is surrounded by cliffs more than 2,000 feet (610 m) high. This valley's bottom is broad and relatively flat, with an accessible region about 2 miles (3.2 km) long and 0.5 miles (0.80 km) wide. The abundant sun and rain provides an ideal environment for flora and fauna. Many native Hawaiians lived in the valley into the 20th century, farming taro from a vast complex of terraced fields. Today, its designation as a state park forbids anyone from residing there.