From first ice thru mid winter I like water in 8-14 ft range where I fish but with close access to deep water, last ice it doesn't matter just close to where you think they'll be in shallow spawning. Last ice I fish super shallow sometimes, 2-6 fow. Fishing around the island points and drop offs should be decent to, especially if theres pike food around, like the walleye and trout, just set up big baits shallower. What kind of trout in there? If its rainbows, browns, brookies, they are often found real shallow all winter and the big pike are likely there snacking on them, and you could set up for the pike all winter in 2-6 ft on some shoreline structure especially if theres deep water close by.