A very enjoyable experience. First a walk down to the cove. It takes about 20 minutes. Keep in mind the walk up takes 40 minutes. A group of about 30 take a boat ride to the island with brief narratives from a volunteer park ranger who stays on the island with the group. Then a walk to the top of the island another mile. The views of Crater Lake along the way cannot be beat. At the top is a volcano cone. You can walk down to the center and around the rim. After lunch, the one mile walk down. The ranger is waiting for Q&A. It was his last day of the summer but he was still upbeat. Next a 75 minutes narrated tour around the lake. Take a jacket as it is cold. Last but not least, the long walk up to the parking lot. All told, a seven hour day excluding driving. If you have just one day in the Park and can walk 4.5 miles with elevation, the Wizard Island Tour is a good bet.