To cross the roads in Vietnam, slowly walk into the traffic allowing it to flow around you – if you move too fast or hesitate, it’ll confuse the drivers. I hired a scooter for 75,000 Vietnam Dong per day, but you may not share my death wish.
The quickest overland route between Hanoi in the north, and Ho Chi Minh City in the south, is by train and it takes over 17 hours. Most tourists take the bus and stop along the way. If you’ve only a couple of weeks, consider sticking to either the north or south. Hanoi is a good base for visiting the attractions up north, and is generally preferred to the south.
Siem Reap/Angkor – Home to one of the wonders of the world, Angkor Wat. Find a hostel around Bar Street. The Landmine Museum is a must-see. And it may not be in your guidebook, but research seeing the temples by electric bike – it’s the best way. They’re available about 100 metres before the main entrance. Save your money and go for the Angkor day-pass – guidebooks suggest this is a crime, cramming into one day what should take 3. However, I and many fellow travellers found that 2 days was too much and 1 full day would’ve been fine – particularly as 90% of the very-expensive ticket price goes to a Vietnamese oil company, rather than to conservation. Also, the people who live amongst the temples do not see any of this money, so support them (however much they hassle you)!
Phnom Penh – Check out the last of the Cambodian trains and go on the one remaining (if it’s running) – it’s a unique experience. Also, see the S-21 Torture Museum and the Killing Fields – prepare to be horrified. Avoid any ‘shooting ranges’ and stay at a cheap hostel on the riverside.