Tomales Bay Waterdogs, the annual Red Cross swimming program for children ages 5 and up, starts Monday, July 30 at Shell Beach II in Inverness. Waterdogs is a safe and fun opportunity for youngsters to learn, from a certified Red Cross Water Safety instructor, how to swim or improve their water safety skills. Classes will be held from 1:30 to 3 p.m. and run through August 10. Sponsored by the Community Resource Center of West Marin. To apply, or for more information, call (415) 663.8361.