Transform your picnic area into a zen oasis with a garden-themed design. Create a peaceful and tranquil atmosphere by incorporating elements like a small water fountain or a koi pond. Use natural materials like bamboo or stone for furniture and decorations. Add meditation cushions or yoga mats for a relaxing seating arrangement. Surround the area with bamboo screens or tall plants to create privacy and seclusion. With a zen garden-themed picnic area, you can create a serene space where you can unwind, meditate, and connect with nature.