Kohala Coast
Turquoise lagoon and black-lava bay north of Kona with green sea turtles in the shallows; a fifteen-minute walk in from the highway lot. Bring water — no shade.
No reservation or entry fee. The Kīholo State Park Reserve gravel road off Highway 19 is open 7 AM–7 PM and the gate is locked at night — cars inside cannot leave. Portable toilets only, no water.