Lap Lane Etiquette
If the lanes are full, you may split or circle the lane. Observe each lane to get a sense of which one best matches your pace. Wait for the other swimmer(s) to finish their set, and then let them know you’ll be joining them. Decide together how you’re going to share the lane.
Splitting the Lane (for 2 swimmers): One of you swims on one side of the lane and one of you swims on the other. If you're splitting the lane, you stay in your half no matter what.
Circle Swim (for 2 or more swimmers): Much like traffic on a road, always swim on the right side of the lane. This means swimming on one side of the lane going down and the other side of the lane coming back. Swimmers move in a counterclockwise circle.