In the morning, take a bus ride along the coast heading to Cat Ba National Park. Today you will have a long trek across dense jungle to reach the peaceful village of Viet Hai (12 km). Short break at Frog Lake, a natural lake in the middle of the mountain, where you will hear the amazing sound of hundreds of croaking frogs. The trail is well made and easy to walk on but pay attention to some steep parts. Arrive in Viet Hai village after about 4-5 hours depending on your capacity and stops on the way for photographing. Lunch at local restaurant in Viet Hai (Whisper Nature lodge). After lunch we walk to Viet Hai Quay for a scenic cruise in Lan Ha Bay back to Cat Ba town. Discover local life in the floating village and farm. If you wish you can make a stop by a nice beach for swimming. Arrive at Ben Beo pier, disembark and transfer back to hotel.