Polipoli Spring State Recreation Area sits high on the slopes of Haleakala on Maui, at about 6,200 feet. The cool, misty forest of pine and cypress feels more like a mountain range on the mainland than a tropical island. Trails lead through the forest and into rare cloud-forest habitat, with opportunities for hiking, mountain biking and horseback riding. The quiet, uncrowded setting makes it a good choice for those seeking solitude. Entry is free. The road in is winding and rough, and weather can change quickly, so drive carefully, bring warm layers and check conditions before you go.