Grab became one of the most important tools on this Da Nang and Hoi An trip. I used it for city rides, Marble Mountains, Son Tra Peninsula, My Son Sanctuary, hotel transfers between Da Nang and Hoi An, the return from Hoi An to Da Nang, and the final airport ride. For this trip, I ended up using three different transport options: pre-booked transfer for the first airport arrival Grab for most city rides, Marble Mountains, Hoi An transfers, and the final airport ride a time-based chartered car for Son Tra Peninsula Each option worked best in a different situation. ...