After Phong Nha, we spent a couple days back in Hanoi to hang out with friends. I even had an old Vietnamese American friend from high school visiting Hanoi at the same time, so we made time to hang out too. It’s always fun hanging out with friends from back home in a foreign country. I even bought an entire outfit to go out in – a hat, shirt, and pants, all for a total of $9 (no bargaining needed)! For the next 3 days, we spent our final days of Vietnam on Cát Bà Island, the largest and only inhabited…