The phrase that has a connotation of freedom and adventure is: "splashed on through the swamp"
Taking into consideration the context in which that phrase was written we can see in the words "splash" and "swamp" John Muir's perspective of life. He was a naturalist writer who loved traveling and who found freedom and adventure in his experiences in the wild life.
Explanation: "Accommodation is a term developed by psychologist Jean Piaget to describe what occurs when new information or experiences cause you to modify your existing schema." (Provided by study.com)