The grand-opening event for Redden Marine Supply’s fifth location will take place Saturday on the Lake Washington Ship Canal in Seattle.

The waterfront event will run from 10 a.m. to 4 p.m. and feature hourly raffle drawings. The grand-prize winner will take home a SeaStar Kit valued at more than $900.

It will also include specials of as much as 70 percent off.

More than 25 factories will be represented with displays of new offerings and live product demonstrations, including a seminar on rope splicing.