On the East coast of Maui is the Waianapanapa State Park Campground. There is tent camping allowed ($5/night) in a grassy area about the size of half a football field at most, so not any privacy except what you bring with. It rains most nights here so be sure to put your rainfly on. There are also cabins for rent. ($45/night) This is a great place to spend a night to avoid having to drive all the way back to the others coasts. It’s also a close drive to Hana, The Seven Sacred pools of Oheo (where I lost my glasses cliff jumping), and the Popowai Trail which leads to 200’ Waumoku Falls. The coast line is beautiful with a black sand beach with strong currents at times. There are also many sea caves to explore and an old hiking trail along the coast. Follow the trail South to a blowhole. Sunrises are amazing over the ocean. Facilities include a bathroom with flush toilets and an outdoor shower. The road to get here is the famous road to Hana which winds (and winds and winds) along the East coast past many waterfalls, and a number of local fruit stands selling local produce, smoothies, coconut, and banana bread.