77 north to 90 east. Right after you go around Dead Man's Curve, get on rt 2 west. Go over the bridge, and look for the Edgewater/Whiskey Island Marina/ramp sign. Go right, twist around to the left, and launch the boat. Make sure you lock your doors.
Edgewater is closest to the crib. Your vehicle and trailer will be fine, especially on a weekend during the day. There will be lots of people around.
People have complaned about theft and vandalism there but I don't think it's very common. I've also noticed quite a few cops patrolling through there lately.