• Fall/Winter/Spring Swim Session starts on Sunday, September 8. Please sign up for the number of days per week you plan to swim on ActiveMontgomery. Instructions are listed here.
  • USMS registration is also required for 2025, as this is our insurance. Please remember to register at usms.org
  • If you’re not an Ancient Mariner, now is the time to switch teams if you would like. Remember that we are in the Potomac Valley, not Maryland. So you will find ANCM under the Potomac Valley region.

The easiest way to sign up for both practice and USMS is to click on “Join” on the top menu bar, and follow the directions.