Jay Rzechula of Oak Lawn and his kids, 13-year-old Harley, 12-year-old Margie, ten-year-old Casey and eight-year-old Abbey were found 12 nautical miles off the coast of St. Joseph, Michigan Tuesday morning.
The Coast Guard says the sailboat was in a zone with no cell phone coverage, so no one could reach them.
The children's mother contacted the Coast Guard after they failed to arrive at Chicago's Jackson Park Harbor by Sunday as planned.