Please choose the correct ending to complete the given sentence: River tubing: There are several people dressed in safety vests and helmets sailing in a speed boat to go tubing in water. they

Ending1: travel through the lake and arrive at a spot where they get off the boat and jump into the water with their tubes. Ending2: go around large potholes alternating between flowing and winding between trees. Ending3: talk about watching a color barrier over the ocean. Ending4: canoe through the rough waters and close in on rocks several times.

Answer format: ending1/ending2/ending3/ending4