If you want to stop off by the side of the road, or in the market, or just about anywhere in fact, you will have to sit in a tiny plastic chair.
The obvious is that people in Vietnam have very small bottoms - nowhere have I seen a fat person.
The little chairs are in fact of the child size used in schools in the UK, and I expect they are a lot cheaper, and take up a lot less space, than the adult size that us westerners are used to.

At first you think you cannot possibly fit into the tiny chair, but in fact they seem to expand sufficiently.
Hue was our destination after the overnight sleeper from Hanoi.
The hotel, 5 Le Loi, is quite large and has different levels of comfort, over about five grades. Actually not expensive, because the top level costs $25 including breakfast.
The problem with Hue is the agressive cyclo drivers.
This image springs to mind: two rather confused mice, surrounded by about ten determined and voracious cats.
Cyclos are a type of large bicycle, the rider being high off the ground, and in front of him (never a her) is a rickshaw like carriage facing forwards.
The two that attached themselves to us, when we walked to see the outside of the Imperial Palace, and the Fine Arts Museum, were almost unbearable in their determination.
They waited outside the Museum, they followed us along the road (wrong side), then through the little park cycling on the footpaths, sat down by us at the roadside when we stopped to drink coconut milk, then persued us back to the river bridge, finally calling out a few not flattering remarks.

The best meal - the most lavish surroundings - in Hue I enjoyed at the Saigon Morin which is about 100 years old.
The guests are of course multi-national - there was a large American group - and in the middle of the hotel is a large courtyard full of lovely mature trees, hung with coloured lanterns at night.
There you can sample a delicious buffet dinner for $10, sitting under the stars, and listening to a girl band in Vietnamese costume playing Vietnamese music with a few Beatles hits thrown in.
The food is exceptionally delicious there, with a strong French flavour in the desserts and it was a perfect antidote to the experience with the cyclo men. In fact taxis are cheaper than cyclos.
On the third morning we waited at 8 o'clock for the tourist bus to Hoi An. It finally arrived at 9.30.
The drive to Hoi An takes about 4 hours with a stop, and is through alarming mountain roads with 'No overtaking" signs every few yards, which all the bus and lorry drivers happily ignore.
More to follow!