Even in summer, though, the weekdays are no problem. In deep winter, snow occasionally is a problem. The park is at a 3,000-foot elevation, but in getting there you have to go higher. The park is 35 miles north of Redding on I-5. Besides Shasta Lake with its 365 miles of shoreline, there's the dam itself, the second-largest and the highest concrete structure in the United States.
Tours are available.