Four-Day Planet by H. Beam Piper

Getting a ship's boat berthed inside the ship in the air is tricky work under the best of conditions; the way the wind was blowing by now, it would have been like trying to thread a needle inside a concrete mixer. We submerged after the ship and went in underwater. Then we had to wait in the boat until the ship rose above the surface and emptied the water out of the boat berth. When that was done and the boat berth was sealed again, the ship went down seventy fathoms and came to rest on the bottom, and we unsealed the boat and got out.

There was still the job of packing the wax into skins, but that could wait. Everybody was tired and dirty and hungry. We took turns washing up, three at a time, in the little ship's latrine which, for some reason going back to sailing-ship days on Terra, was called the "head. " Finally the whole sixteen of us gathered in the relatively comfortable wardroom under the after gun turret.