Cat Tien National Park (Vietnam). 'One of the most accessible and impressive protected areas in Vietnam, Cat Tien lies conveniently midway between Ho Chi Minh City and Dalat. Set on a bend in the Dong Nai River, there is something vaguely Apocalypse Now about arriving here. Popular activities include trekking, cycling and wildlife-spotting.' http://www.lonelyplanet.com/vietnam/around-ho-chi-minh-city/cat-tien-national-park
F is for Floating markets, that you will find across Asia. From Ho Chi Minh city in Vietnam you have easy access to a nearby spectacular market, where you can soak up the lively atmosphere and Vietnamese folk music whilst picking yourself up some fresh river produce and fish.