Dedicate day six to exploring the cultural side of National City. Begin with a visit to the Olivewood Gardens and Learning Center, a beautiful urban oasis that promotes healthy living and sustainable practices. Take a guided tour of the gardens and learn about organic gardening. Next, visit the National City Public Library, which offers a variety of books and resources. In the evening, catch a live performance at the A Reason to Survive (ARTS) center, a nonprofit organization that supports youth arts education.