Danang or Hue?
 

We port in Danang for the day. There are shore excursions to both Danang and to Hue, We
can't do both. Any recommendations?

Honestly I don't know anyone in this forum who has taken a cruise to Vietnam.

I did a cruise to Vietnam in 2001. Danang was one of our stops. I'm not familiar with Hue. We did a tour that involved seeing the sights and a stop for a drink and time at China Beach.
If your itinerary involves Ho Chi Minh City, I would recommend the Chu Chi Tunnels.

Really Dave? I would have thought being a Navy guy that you would have known of a bunch of guys that took a cruise to Vietnam.. I suppose that was before your Navy days :D

The closest I got to Vietnam was the Philippines in the Marine days, although when I got transferred to Philadelphia I befriended some Vietnamese refugees. "Ma" spoke no English but was a great cook. She had owned a bar and restaurant in Saigon. Man, that was usually some pretty spicy food! Pho - love it.

Sorry to insult you like that Dave... not sure why I said Navy... I knew you were a Marine... my bad.

I was both! Marines first, then I joined the Navy. So you were remembering correctly.

Which gets tricky since the United States Department of the Navy comprises the United States Navy and the United States Marines.

Well I knew that CF but not every marine is stationed on a ship...

Some cruise ships that show Da Nang on their itinerary actually dock at the port of Chan May just under an hour from Da Nang. So you need to check if your ship is one that docks in Da Nang itself. (I think Royal Caribbean uses the port at Chan May.)
If you get immigration forms to fill out, don't lose them as they are collected on return to the ship.
I've been looking at the possibility of having a holiday/cruise to Vietnam and I think I would prefer Hue to Da Nang.

Jim C even though it was 10 years ago what was your impression of Da Nang ?