Scott Eastwood's a bundle of energy when his feet hit the sand -- running around and diving in the water -- but he still finds time to chill ... next to a hot chick in a bikini.
The "Pacific Rim: Uprising" star took a dip in the Atlantic Ocean Friday in Miami ... and showed off all of his finest shirtless features in the process.
Clint's son was also seen jogging around the beach, before stopping to chat up a mystery blonde in a tiny swimsuit.
Good times for Scott for sure, but still ... nothing compared to hanging out with some orcas.