One sea day from Laem Chabang, the Volendam docks at the Vietnamese port of Phu My (near Saigon) on December 16, 2012. Mark makes a shore excursion to the infamous Cu Chi Tunnels for some M60 target practice. A sea day later, the Volendam visits Da Nang on December 18, 2012. After a morning walk in the city, Mark takes a taxi tour to the Marble Mountains. The next day, the Volendam drops anchor in Halong Bay on December 19, 2012. A gloomy boat tour ends with a spectacular cave walk. A shopping trip and dinner in town punctuate Mark's visit to Vietnam before the Volendam sets sail for China.