Two people plan to travel for 20,000 yuan 15 days. What are the good places?

It costs 20 thousand yuan for two weeks, and some big attractions can't be visited. Let's travel to Vietnam. Vietnam's Fuguo Island is very good, and the sea water is very clear. The main reason is low consumption. It costs 100 yuan to stay in the island hotel and 1500 yuan for fifteen days. Then the local prices are not expensive, basically excluding round-trip air tickets, which is enough. In China, it is suggested to drive to road trip to save money and enjoy the scenery along the way, even though domestic consumption is relatively high, it is still possible to save some flowers.