Bay in Piʻilani Highway

Nu'u Bay

Reached via a short 4WD trail that's also walkable, this gorgeous empty bay is punctuated by a black-sand beach, archaeological sites and a protected wetlands refuge (www.hilt.org). You might see endangered...

Food & Drinks in Piʻilani Highway

Kaupo Store

Selling snacks and drinks, this cash-only store is off the grid. Don't rely on its being open when you drive past, as it's often closed. If it's open, however, it’s worth popping inside just to see the shelves,...

Natural Feature in Piʻilani Highway

Lava Flow

This field of black ʻaʻa (rough, jagged lava) dates from the last volcanic eruption on the island, 400 to 500 years ago. The flow drops down the southeast coast of Haleakalā to the sea at La Perouse Bay.

Volcano in Piʻilani Highway

Kaupo Gap

Pull over to gaze at this dramatic volcanic rift that drops down the southern flank of Haleakalā. The Kaupo Trail descends through here from the crater of the volcano.

Church in Piʻilani Highway

St Joseph Church

Established by Catholic missionaries in the 19th century, St Joseph Church celebrated its 150th anniversary in 2012. The church offers a noon Mass on the fifth Sunday of the month in months with five Sundays....

Landmark in Piʻilani Highway

Auwahi Wind Farm

You can't miss the eight towering turbines rotating gracefully between the highway and the sea near mile marker 22. The turbines are a joint venture between Sempra US Gas & Power and BP. According to the wind...

Bay in Piʻilani Highway

Huakini Bay

Huakini hosts a deserted, rough and rocky beach (you might see a few fishers). From the two gateposts just east of the 30-mile marker, walk down the dirt road to the coast.

Viewpoint in Piʻilani Highway

Sea Arch View

Just west of mile marker 29, an impressive coastal sea arch is visible from the Piʻilani Hwy.