While I was visiting Greenville, South Carolina, I took an unofficial poll. The results were unanimous: my sources told me Lake Jocassee is the state’s prettiest lake. The 7,565-acre lake is 42 miles northwest of Greenville in Devil’s Fork State Park. People visit the park to swim, fish, kayak, hike, camp, and even scuba dive. Learn all about Lake Jocassee and Devil’s Fork State Park in the guide below. And if you’re a runner who plans to be in Greenville next May, see how you can get...