Da Nang is a coastal city about half-way between Hanoi and Ho Chi Minh. The day I arrived was at the tail-end of a tropical storm that flooded half the city.
I spent most of the time working but did manage to get out to some local caves at the end of the week.
It was supposed to be a paid entry, but they just waved me through when I wanted to pay, so that was nice :)
These caves are part of a larger part of Da Nang with mountains, filled with temples.
I took a Grab (Asian Uber) to the site and asked the driver to wait for me to get back, so while I had plenty of time, I still felt rushed.
There weren't a lot of people at the site, except for these ladies posing all over the place.