Complex sentence: The American Red Cross Volunteer Life Saving Corps (ARCVLSC) is a non-profit organization made up of volunteer lifeguards, and is a division of the American Red Cross, which provides volunteer lifeguards to Jacksonville beaches and internationally through Lifeguards Without Borders.
Split into simpler sentences: The American Red Cross Volunteer Life Saving Corps (ARCVLSC) is a non-profit organization made up of volunteer lifeguards. It is a division of the American Red Cross, which provides volunteer lifeguards to Jacksonville beaches and internationally through Lifeguards Without Borders.