Disaster
Shipwreck, Accident, Being Stranded
noun, する verb
If you encounter something difficult it's going to result in disaster. Especially if you're in a boat. Encountering really difficult water will result in a shipwreck! Ick!
そうなん
This is a jukugo word that uses the on'yomi readings of the kanji. You should be able to read this on your own.
危うく遭難するところでした。
We narrowly missed having a disaster.