Because of the various villain attacks and constant stress they're put under, UA sent Class 1-A to the states for a short vacation that was paid for in advance that summer. And of course, the first thing the class did after they settled in was run straight to the beach.

Although Izuku was tempted to jump into the water with his friends, he decided to kick back and bask in the warm sun. He observed his classmates from his place on the sand and breathed a contented sigh. He finally felt relaxed.