Mauna Kea State Park is one of the Hawaii parks in thicket's catalog. thicket is a field guide to the parks near you: it maps the ones you have never noticed, gives you a reason to actually go, and keeps a record of where you have been.
Where it is
Mauna Kea State Park is in Hawaii County, Hawaii. Its approximate coordinates are 19.75152, -155.52448.
Check in at Mauna Kea State Park
thicket verifies you are actually here by GPS when you check in, so a visit means you went. Checking in builds a streak, earns achievements, and fills in your map of the places you have been.