The park resides on the island of maui in the state of Hawaii. The size of the parkIs around 34,294 acres or 138.78 km² though part of the park is a national reserve.The climate here is humid and subtropical with dry desert like areas as well.The park consists of volcano flanks and mountains. There is a huge depression in HaleakalaMisnamed as a volcanic crater. There are plants and animals here that exist no where else in the world.The park was first discovered in 1828 by explorers. Haleakala became a national park August 1st, 1916. Lorrin Thurston was a main influence on Haleakala becoming a national park. According to legend Haleakala is the site the demigod Maui captured the sun only to release it when it could move slowly.Haleakala formed from lava flows on the east side of Maui. The geological formation at Haleakala National Park is The haleakala “crater.” and a few mountains and Ko’olau Gap a giant bowl. The rock formations here consist of igneous rocks. The park also is a valley with multiple hills scattered inside. There was a giant shield volcano called Haleakala as well.Major plant types here are silverswords,geraniums, and mints. The major tree types consist of Hawaiian Sandalwood, Hawaiian Koa Trees, Banyan Trees. Maui Fruit Trees. The animals that live in the park are the Hawaiian Petrel, Hawaiian Goose, Honey Creepers, etc. The status of the majority of the animals and some plants at this national park are endangered. There are tips and a special number to call if you encounter a endangered animal outside of the park.One of the major tourist attractions at Haleakala is viewing the sunrise. Though this is a paid reservations it is one the best things to do when in maui. There are two parts to the parkAnd its rare if you can do both in one day, there is the summit (the mountain area) and the Kipahulu District (the coastal area). At the Summit you can view sunrise or sunset, have ranger-guided programs, hike, drive-up camping, backcountry camping, commercial tours. At the Kipahulu District there is hiking, swimming, ranger programs, drive-up camping, and commercial tours.