If you’re getting married soon, consider Hoi An as your honeymoon destination. It’s really perfect for an adventurous couple. There are several amusement parks, mountains, lakes and national parks in the vicinity to explore. Climb the Son Doong Cave; hike to the Cat Cat old village of ethnic groups to learn about distinctive customs that have been lost; and swim in the Cham Island, recognized by UNESCO as the World Biosphere Reserve.