Not sure where you are located,I started at Kenosha fishing walleye style the first week of May in an 18 foot Crestliner T182. Planer boards with plugs, inline weights with orange dodger and peanut fly and a couple dipseys. Usually morning bite with limit of cohos in a couple hours. Occasional King, rainbow, laker or brown depending on trip. That time of year you can troll the shore or go out to the “third hill” depending on the weather. It is addicting. You can watch the reports as the coho move up the western shore, and time your trip. Usually first week of May in that area. 6 hour drive from central Iowa. Milwaukee has a large totally enclosed harbor you can troll inside,with borderline weather. Port Washington has deep water fairly close to shore.
Good luck!