Through the Port of Seattle's 101 series, the public is invited on Sept. 23 to see the Duwamish industrial area where more than 80,000 people work for an annual payroll of $2.5 billion.

According to the Port, the waterway is essential for jobs and provides critical habitat for fish and wildlife. Government, community and business efforts have combined to make the waterway flow cleaner into Elliott Bay.

Check in at 3:45 p.m. at Bell Harbor Marina, Pier 66. The program ends around 6 p.m. There is only room for 200, so register soon here.

A floating classroom will assist in teaching participants about marine industrial commerce, the legacy of past industrial activities, fish and wildlife habitat restoration and Superfund cleanup plans. Partners include the following agencies: Environmental Protection Agency, Duwamish River Clean Up Coalition, Environmental Coalition of South Seattle, Muckleshoot Tribe.

For more information, call 206-787-3009.