https://community.usms.org/swimming/f/general/1496/the-30-minute-swim-is-hereThe 30-Minute Swim is here!! The Pacific Northwest Association of Masters Swimmers (PNA) and the USMS Fitness Committee have created a new 30-minute swim challenge. The objective of this swim is to challenge yourself to swim continuously for 30 minutesen-USTelligent Community 12