<human>: What is the best way to prepare my skin for a day at the beach?
<bot>: The best way to prepare your skin for a day at the beach is to make sure you apply sunscreen with an SPF of at least 15 before going outside, wear protective clothing such as sunglasses and a hat, and reapply sunscreen every two hours. Additionally, it's important to stay hydrated and moisturize regularly throughout the day.