If your timing is 'right' for the tides, consider to 'ride the crest of the tide' all the way to Cape May or Lewes. If the entrance to the Engineer's Cove at the Rt 213 bridge (Chesapeake City) on the C&D canal is clear (it shoals closed a lot, so contact by phone to the C&D 'control' for current condition of the entrance) anchor in the east portion of the basin in the Engineers Cover to stage there for a run down the Delaware Bay:
Going 'down' the Del Bay:
Be at the Rt. 213 Bridge over the C&D (Chesapeake City) 1-1/2 - 2 hours BEFORE the change of tide/current to the east ('crab' your way into and out of the Engineers Cove entrance when the current is 'running'). The Rt. 213 bridge is the geographical divide between the flows and tides in the C&D. Use Eldridge tide/current tables or other internet, etc. historical CURRENT (not tide) data sets to time your position AT the Rt 213 Bridge / Engineers Cove on the C&D. The C&D tide and current flow is a 'hydraulic current', and is dependent of the differing heights and their differing timing between the Chesapeake and Delaware Bays. Do NOT use other tide/current data points (Reedy Point, etc.) to get your timing 'right' for the Chesapeake City / Rt. 213 bridge, the current flow in the C&D is not 'intuitive'.
If you leave Chesapeake City 1-1/2 - 2 hours before the turn of the current, most times, you will ride the crest of the tide all the way down the Delaware Bay to Cape May POINT (assuming you can keep up ~6 kts. SOG).
If youre 'too tall' to get under the Cape May Canal Bridge (55ft.???), and if conditions are 'benign', pass VERY close to Cape May POINT, using the "Epf Shoal Channel" to later enter the town of Cape May using the 'ocean side' inlet. The Epf Shoal Channel is narrow, unmarked, very close to the beach at the 'point' (you can probably throw a rock onto the beach there with a good strong arm); but, is well scoured. Use your depth sounder to follow the Epf Channel. Use Epf Shoal channel only during 'benign' conditions as its shallow (especially at dead low tide). This will save you several HOURS when rounding Cape May Point. ..... OR bail out at Lewes Delaware.