On your second day in Otay Mesa, embark on an exciting outdoor adventure. Start your day by visiting the Tijuana River National Estuarine Research Reserve, a protected area known for its diverse wildlife and beautiful coastal scenery. Take a guided tour or explore the trails on your own, and keep an eye out for birds, reptiles, and other fascinating creatures. Afterward, head to the Border Field State Park, where you can relax on the beach, go for a swim, or have a picnic with stunning views of the U.S.-Mexico border. In the evening, enjoy a sunset stroll along the beach and soak in the peaceful atmosphere.