Stone Age settlement found under the sea in Denmark

It's interesting to me that items are well preserved. I thought salt water was particularly damaging and corrosive.

Corroding what? This is before metals were widely used.

not corroding, but all the wood/bone/soft materials basically disappear over 10k years. very little will be left

Salt water without oxygen and salt water with oxygen are different.

Not wrong, but TFA mentions "8.5k years" ago as the projected time for these findings. In cold, low-oxygen water, even wood & bone is preserved fairly well.

The salt water part is not particularly surprising to me, after all we have plenty of wooden shipwrecks from the bronze age. Wood is preserved much better in the salt water than on the ground (unless it's a desert).

What I don't understand is how it survived the surf. 2 meters per century means that the place had spent a century in the surf line, and surf grinds everything into sand and dust and scatters what it can't grind. I would have understood a sudden flooding but this is surprising.