If you’re a local and have hosted a visitor to San Diego, you’ve probably felt pride as you’ve guided people to take in Coronado Beach, Pacific Beach, La Jolla Cove, our parks and swimming holes along Mission Bay, and perhaps the new and growing waterside paths along Chollas Creek. Our beaches, bays and waterways are central to who we are as San Diegans and to our unique way of life. But in a heavily urbanized region clean water doesn’t just happen; it takes hard work and stewardship.