This has got to be one of the best excursions we took part in, while in Alaska! Talk about being as free as a bird. Six Jeeps following a guide, deep into the Denali Preserve, along the desolate Denali Pkwy. We were out from 6:00, until almost midnight, and it never got dark (5/24/16). We must have driven 150 miles altogether, seeing wildlife and spectacular closeups of mountains and lakes. If you are hesitating, don't! Do it!!!