- RAFTING 2 people per boat, if your group participates in the tour with an odd number of people, that person must sit on the boat with someone else who is not in your group. 1 hour of navigating your way around large rocks and scenic waterfalls along the 2,5 kilometer (1,5 mile) of rocky river. Experience the one-and-only rafting game in Viet Nam. *Note*: Age regulation: from 14 to 65 years old. Weight regulation: over 40 kilogram - ZIPLINE More than 300 meters (1000 feet) long, start-ing from hilltop, you will glide across said river at high speed. *Note*: Weight regulation: from 25 to 90 kilogram. Zipline activities will stop working when it rains and you will not get refund for this activity - LUNCH After rafting you will be starving! Have a taste of traditional Vietnamese lunch, with pork/ beef, omelet, deep-fried river fish, zucchini soup, stir-fried vegetables, and dessert.