All national car rental companies limit driving on a handful of rough, island roads. You’ll be happy to know that few roads in the Hawaiian Islands are restricted. While we can guarantee a 4×4, unfortunately, you are limited where you can drive them. You are welcome to drive your vehicle on the Mauna Kea Summit Rd. to the Mauna Kea Visitor Information Station. Driving is not allowed in the restricted area beyond the visitor center. Albeit, there are a handful of hikes you can take from the parking area. When you pick up your vehicle you’ll receive a map with these regulated areas clearly marked.