Experienced travelers agree that a European river cruise is one of the most enjoyable and hassle-free ways to explore Europe's castles, cathedrals and picturesque villages. And with AMAWATERWAYS, your opportunities to discover the very best these destinations have to offer are endless. Enjoy a spectacular voyage through the heart of Russia along its colorful and historic waterways. The Mekong River winds its way from the Tibetan plateaus of Chinaâs Yunnan province, through the rainforests, plains and rice fields of five Southeast Asian countries before meeting the South China Sea.