Summer is in full swing, which means it's time to hit the water. During California's sun-drenched splash season, water dogs and families seek out seaside coves, freshwater lakes, secluded swimming holes and idyllic rivers across the state. You'll find unforgettable activities – plus open-air patios and pup-tastic hotels perfect for recharging. Customize your own splash season itinerary with these DogTrekker-tested favorites.