The salmon and trout fishing is usually deep after early spring, with downriggers or dipsy diver and wire line. If you have heavier tackle for the salt, bring it with you. Another site to look over is
www.glangler.com That's the Great Lakes angler site which covers Lakes Ontario, Erie, Michigan, Huron and Superior. If you get on those boards, there's lots of folks to share info with you and will probably take you out too.