Hanoi, Vietnam
We had an early flight out to Hanoi so we were up and out at about 4am so you can imagine my joy when we got to the check in desk and realised we didn't have a visa for Vietnam. We've been to 8 different countries by this point and I'd always got everything right so I don't know how I missed this one, I could have sworn I'd checked all the countries in Asia at the start of our trip and they were all visa on arrival. To be fair Vietnam is visa on arrival but you h...