Describe the release of the dwarves from the barrels?

From the text:

First of all a barrel was cut loose by Bilbo and pushed to the shore and opened. Groans came from inside, and out crept a most unhappy dwarf. Wet straw was in his draggled beard; he was so sore and stiff, so bruised and buffeted he could hardly stand or stumble through the shallow water to lie groaning on the shore.

In the darkness floundering in the cold water they had a difficult and very nasty job finding which were the right barrels. Knocking outside and calling only discovered about six dwarves that could answer. They were unpacked and helped ashore where they sat or lay muttering and moaning; they were so soaked and bruised and cramped that they could hardly yet realize their release or be properly thankful for it.