Hawaii Volcanoes National Park

  The 377 square miles Hawaii Volcanoes National Park was established in
  1916 and has been honored as a World Heritage Site since 1987. One of the
  world’s natural wonders, Hawaii Volcanoes National Park provides an
  unparalleled volcanic experience. The national park displays the creation of
  the Hawaii Island Chain and helps visitors understand the Earth’s origin.
  Kilauea and Mauna Loa are two of the world’s most active volcanoes.
  Mauna Loa, at 13,677 feet high, is the most massive mountain in the world,
  occupying an area of 19,000 cubic miles. Kilauea Caldera, according to
  Hawaii Legends, is the home of Pele, the Hawaii goddess of fire. The natural
  setting of Kilauea and Mauna Loa provides a fascinating world of active
  volcanism, unique ecosystems and distinct human culture. The park is also a
  refuge for many of the island’s native plants and animals. Endangered species
  protected in the park include the Nene (the Hawaiian goose), Hawaiian
  honeycreepers, the Kamehameha butterfly, etc. Hawaii Volcanoes National
  park truly is the essence of Hawaii.

  Nestled between unspoiled stretches of shoreline and Mauna Loa, Hawaii
  Volcanoes National Park offers camping, hiking, biking, bird watching as well
  as many other outdoor activities. Hundreds of miles of well-maintained and
  marked trails such as Halemaumau Trail and Kilauea Iki Trail make Hawaii
  Volcanoes National Park the premier destination for outdoor enthusiasts. For
  more information about the Hawaii Volcanoes National Park, please call (808)
  985-6000 and check their web site www.nps.gov/havo.

  Weather at the Hawaii Volcanoes National Park is generally wonderful and
  consistent year-round. Winters tend to be slightly wetter and summers slightly
  warmer. Night and early morning are refreshingly brisk and can dip into the
  high 40s. The temperature goes up quickly during the day and is generally
  warm and comfortable with temperature below 90. As temperature and
  precipitation vary with elevation and location, it is wise to bring warm clothing
  and a rain jacket. The coastal plain and desert areas are hot, dry and windy
  while Kilauea summit at 4,000 feet above sea level can be chilly with rain
  showers. The well-prepared travelers should bring sweater, rain gear,
  windbreaker, long pants, close-toe shoes, sunglasses and high UV factor  
  sunscreen. 

                                                                                                       
                                                                                          Lava entering the sea                                                                 
                                                                                                                     Photo:  U.S. Geological Survey