Boston is in the New England LMSC.
www.swimnem.org
I don't know the schedule for other teams, but Cambridge Masters swims out of Harvard's pool. It's about a 10 minute stroll from the Harvard Square T stop. I believe the drop in fee is $10 for USMS members. There's more information on the CMSC website:
www.cambridgemasters.com
This weekend:
Saturday 9-10:30 LCM IM focus
Sunday 6:15-7:45pm LCM distance free
You can check in the NEM web site for more information: www.swimnem.org.
Around the Boston area you also have the MIT master, YMCA Central Branch, BU, etc. Most of them had practice on weekends.
Igor
I will be in Boston for a convention the week of July 10. It looks like the Central Y is not too far from the Convention Center area and has lap swimming throughout the day.
Are there any other reasonable choices to swim while I'm in Boston? I don't need a coached workout - just a place to swim. I don't have a car but will happily take a short cab ride.
I looked this up using "places to swim" above....