Hmmm, I am a little bit but I'd certainly consider it, cheers for the info🙏🏻. Are they North or South🤔. I'll probably start in Hanoi then work my way South.
Discussion
In the south, out of Ho Chi Min city about an hour. Hoi An in Central Vietnam is also great, ancient port city with a range of influences.
I'm a bit claustrophobic, it freaked me out, how small and deep they were, but I'm glad I did it.