This weekend, Ernie Andrus, a World War II veteran, began striding west from Saint Simons Island, Georgia, headed on foot for San Diego, California, roughly 2,600 miles away. Andrus is 95 years old. Ninety-five. He expects to finish his trek in about five years, or when he turns 100. From 2013 to 2016, Andrus ran the opposite direction across the country, from San Diego to Georgia. That trip, he averaged about 18 miles per week; since he’s a little slower now, Andrus hopes to cover 13 miles per week this time. Why do it again? Well, one he got bored after he finished his last voyage. And two, he’s raising money for a memorial for the LST 325, a WWII ship used to land troops and equipment on beaches. If he made it at 93, no reason to think he can’t do it at 95 too. Andrus sure has no doubts, or at least few concerns. “I’ve got all the runs planned clear up to 2025,” he said.