Mandeville to Pcola
I think you are being optimistic on time. You can possibly make Perdido Key, in 24 hours run time, but you would have to absolutely fly. Basically no one in a sailboat runs the ICW at night through there. Many places where the markers are scarce, and lots of skinny water. If you want to make it fast, and plan on running at night, I would recommend heading offshore through the Gulfport channel, and heading straight for Pensacola. Would be a pretty nice trip this time of year. Even doing this, I don't believe you can leave Mandeville in the morning, and make the Gulfport channel before dark. And I can assure you, the lake is full of crab traps, which you cannot possibly see at night. If time constraints make it necessary to make the run after dark, and in the ICW, be damn sure you have an accurate, dependable chart plotter. I have made this same trip literally hundreds of times, both inshore and off. I would not even consider making it in the ICW without a good chart plotter. Send me a PM if you want some more detailed info.