Explore Sung Sot Cave, a vast 10,000-square-metre cavern with a 500-metre walkway winding through impressive rock formations. Also known as Surprise Cave, each chamber reveals striking natural features. Afterwards, return to Tuan Chau and transfer to Hanoi airport for your flight to Da Nang, continuing to Hoi An, where you will settle in and prepare to explore this charming riverside town.