On day three, immerse yourself in the natural beauty of National City. Start with a hike in the Sweetwater Marsh National Wildlife Refuge, where you can spot various bird species and enjoy the tranquility of the wetlands. Afterward, head to the Chula Vista Elite Athlete Training Center, where you can watch athletes train for various sports. In the evening, relax at the Pepper Park Beach and catch a mesmerizing sunset over the Pacific Ocean.
