What was it like inside? Dark and cold and damp? Were the rocks / ground supported? How deep could you go in?
The regular ticket let’s you in a kilometer. They have a small group tour that goes another couple of km, but it doesn’t have wood boardwalk or lighting. The place is HUGE. Some caverns 20 meters high. Lots of spectacular formations. We’ll worth it IMO.
That’s so cool!! Ground that is 20 meters tall is so cool. I’d be interested to hear about how it was formed etc.
If this is the cave I’m thinking of, it’s huge.
kagis
I don’t know if there is a “Phong Nha cave”, but the one I’m thinking of is in Phong Nha-Kẻ Bàng National Park, so I’m guessing that that’s it.
https://en.wikipedia.org/wiki/Hang_Sơn_Đoòng
Sơn Đoòng cave (Vietnamese: hang Sơn Đoòng, IPA: [haːŋ1 ʂɤːn1 ɗɔ̤ŋ2]), in Phong Nha-Kẻ Bàng National Park, Quảng Trị Province, Vietnam, is the world’s largest natural cave.[1]
I think that the above image is from a sinkhole where the roof opens up partway through it.
There’s some YouTube video I saw a while back that did flybys of 3D models.
It’s in the same park, but not the same cave.
Oof imagine the radon in there