I think photog situations abound. I went a couple winters ago with GF & my teenage daughter with our travel time limited by her 3-week winter school holiday. Did Siagon > Boat trip SW to Cambodia > boat up to Phnom Penh > Angkor Wat > Ha Noi > Halong Bay > Hoi An > Saigon. Did all that flying by the seat of our pants with only the first night's hotel reserved in advance. Saving transfer time, we hopped on last-minutes seats on puddle jumpers, and availability for that was thin. Of those, I'd be tempted to skip Angkor Wat, yes I took many photos but there's so many of us mobbing the place, and that's in a different country anyway. Halong Bay is spectacular, and part of my motivation for the trip was to rock climb there. Normally to stay out on Halong Bay you need to book with a larger tourist junk, but we went out for a couple days with a smaller unlicensed sleeper boat and could chart our own course. You could find the boat captain thru the VietClimb website run by a frenchie ex-pat Jean. (added: boat thru catbaventures.com) In fact I just realize Jean is taking the liberty to use some of our photos on his site. A highlight was doing a "homestay" in SW Vietnam enroute to Cambodia - best food ever. That's the low-rent version of a western B&B. Other highlights are war memorials, which I did for the experience with my daughter. I am not a motorcycle driver, but word was there's good opportunity to rent and ride up to the highlands. Instead we rented scooters and took casual rides thru small villages on the central coast. There's some 3-1/2 million scooters in Saigon, so you need to have your wits for riding there (the daily death toll is quite substantial). I carried a shoulder bag and a normal lens kit, some WA, some low-light prime, some tele for people candids, no tripod. Internet cafes abound. Nothing is hard about the photo gear, although expect to be in boats of various sizes. It seemed cloudy & foggy for most of our time there. I carry all clothes in a small backpack for carry-on luggage only, which is key.