Re: C&D Canal
Go with the tidal current in the canal, then wait behind Reedy Island or in Delaware City for a favorable tidal current to Cape May. Search for posts by chef2sail.
NOAA tidal currents should be the first item to research.
If waiting for a favorable current at Delaware City, I had 5.9 ft depth at low tide in the entrance then better than 9 ft in the Delaware City Canal in early May.
1970 Havsfidra 20 by Fisksatra
On the Delaware River at Fox Grove Marina Essington PA