On Tuesday Nov. 25, the King County Sheriff’s Office TAC 30 team (the department’s tactical unit) will be hosting a multi-agency maritime operations exercise in the area of the Des Moines waterfront, including the marina.

“Citizens may see our helicopter flying from the Alki Point area south to Dumas Bay,” reads an announcement.

Hours of the exercise will be from approximately 8 a.m. until 5 p.m.

The main landing zone for the helicopter will be the Des Moines Marina. Agencies participating in the exercise include the Washington State Patrol, Seattle Police, Bainbridge Island Police, the U.S. Coast Guard, Customs and Border Protection and King County Medic One.

There will be numerous law enforcement boats involved in the exercise, along with one boat from Argosy Cruises.

The main landing zone for the helicopter will be the Des Moines Marina.

During the exercise there will be no public access to the pier.