On day 3, explore Koboke Gorge, another picturesque destination in Tokushima. Take a thrilling rafting or canoeing adventure along the Yoshino River, navigating through the narrow and rocky sections of the gorge. Admire the rugged beauty of the surroundings and feel the adrenaline rush as you conquer the rapids. After the exhilarating experience, unwind at a riverside picnic spot and enjoy a leisurely lunch amidst nature.