The YWCA of Central Maine has begun registration for its high school preseason swim clinic, which will be offered from 3 to 4 p.m. Tuesdays and Thursdays, Sept. 18 to Nov. 8. It is for students interested in joining their swim team and for those who are already on the team. The clinic will focus on stroke development, starts, turns, endurance and conditioning. The cost is $100 for members and $125 for nonmembers. To register, stop by the YWCA, 130 East Ave., Lewiston, or call 795-4050.