At the rookie try outs, Captain Thorpe tells the swimmers to turn left at the buoy and swim parallel to the shore. When we see them swim parallel to the shore, they've clearly turned to the right.
When Craig goes to the hotel room to talk to Lou, he arranges the blanket around himself like a toga, with part of it thrown over his shoulder. It remains this way until Craig starts to return to his room, but in the next shot the portion that was on his shoulder is now on the crook of his arm.