Mauna Kea Observatory
Group of astronomical research facilities on the summit of Mauna Kea. In total there are 12 telescopes, each into separate buildings, some telescopes belong to the largest in the world. This is a special land use zone, named “Astronomy Precinct” and established in 1967. Summit of Mauna Kea is free of light pollution, there is low humidity and the atmospheric conditions, in general, are stable.
Iolani Palace
The only royal palace in the United States, constructed in 1879 by king Kamehameha V and used as a royal residence until 1893. Palace was built in a unique architectural style sometimes called – American Florentine style.
Aloha Tower
This unusual and beautiful lighthouse was built in Art Deco and Neo-Gothic style in 1925. It is 56 m high with additional 12 m tall flag mast.
Ka’u Desert
Unusual natural phenomenon: a desert of dried lava that is devoid of any vegetation. Although the rainfall here exceeds 1,000 mm per year, the rain is acid due to nearby volcanic vents and this eliminates any plants. Often the area becomes dangerous due to poisonous gas blows.
Kazumura Cave
The longest lava tube in the world, 65.5 km long and up to 1,102 m deep.
Waipio Valley
Up to 610 m deep valley with steep walls and several large waterfalls, including Hiilawe Waterfall. Contains the steepest paved road in the US and possibly, world. The average grade of this road is 25%.
Pu’u ‘Ō’ō
One of the cinder cones of Kīlauea, erupting continuously since January 1983. The longest-lived known rift-zone eruption. Continuous lava flows from this cone constantly change the geography of the island, here from time to time is observed also lava lake.
Mauna Kea
One of the highest mountains in the world if measured from its underwater base – 10,203 m high. It rises per 4,207 m above sea level. Due to dry and stable air above the volcano, it is one of the best places in the world for astronomical observation.
Mauna Loa
Volcano with the largest area in the world among the volcanoes that are above sea level. It rises 4 169 m above sea level and 9 170 m above its base.
Halemaumau Crater with lava lake, Kilauea
The most active volcano in the world could be Kilauea in Hawaii. The caldera of this volcano contains Halemaumau Crater, where until 2018 was a lava lake.
