No shuttle buses run on the road. The Tahoma Creek trail, at one time a quicker access point to Indian Henry's from the West Side Road, has suffered numerous washouts in recent years and is no longer a maintained trail. Summerland, less than nine miles out and back. It can be done as a day hike, but it's so hard to leave once you're there. Open fields of greenery and flowers, contrasted with acres of harsh rock and unyielding snow, make the area a marvel to behold.
Some campsites offer nice long-range views.
See great views of the Tatoosh Range from Cowlitz Divide, too. Two vehicles are needed to make this work. The views of Emerald Ridge and St. Andrews Park deliver a rich reward for the severe elevation gains and losses you must encounter. Hikes on the southern portion of the Wonderland Trail are nice but not essential. If you can arrange a ride, start at Longmire and have someone pick you up at Box Canyon, about 13.5 miles away.