Man has long felt the need to conquer mountains. If you find yourself drawn to the magic of towering peaks and beautiful views, a climb up Koolaus Mountains should be on your itinerary.
This steep landmass won't cost you a cent, which is fantastic news if you're after free things to do. You'll find Koolaus Mountains in Mililani Mauka - Launani Valley. There are plenty more attractions to experience nearby, including Dole Plantation, Wahiawa Botanical Garden and Hawaii Loves Barbie Dolls Museum.