This week, we are joined by the new editor of Urbanist Hanoi (1:23) to chat about sports and outdoor activities available in the capital, as well as down here in Saigon. From rock climbing and roller derby to stand-up paddle boarding, there's a lot to do if you know where to look. Then (15:50), we look at the latest trends in sustainability in both cities, from the spread of non-plastic straws to an app that allows you to see where informal recycling workers are. As always, we close with Bánh Mì Banter (30:20).