The flags are flown at the seven Lake Michigan beaches in the City of South Haven. Lake conditions are monitored seven-days-a-week by SHAES personnel with flags flown from 9 a.m. to 9 p.m. The flags are now more explanatory than those in the past. The red flag, for example, has a no-swimming symbol on it. The green and yellow flags have the words GREEN and YELLOW on them to better people who are color-blind. SHAES personnel also check the life-rings and throw-ropes on the piers and monitor the swim-zone buoys on the lake. See Lake Michigan Beach Safety