We are also taking the same trip on July 4th and continuing to the Statue of Liberty in NYC. Timing the tides is important especially for the first part of the Delaware
It loks like high tide at the mouth on the Delaware River side of the canal near Reedy point is between 12 and 12:30 PM on June 18. You will get a 3 knot boost to sog for almost 5 hours allowing you to do almost 8 miles per hour or 40 miles with the tide. Plan accordingly. I would power through the canal and not stop in Chesapeake City as the anchorage ios very small....full of powerboats on short rodes and with a mean 4 knot currecnt in the back of the anchorage at the bridge.
We always go through the canal and down about 5 miles on the Deleware Side to anchor between Reedy Island. The are 3 low low lying islands on the Deleware side and anchoring behind them cuts any waves from tankers off. The coves behind the islands is deep...quiet and plenty of room. Set a good rode as there is a 3 knot current. There are two well lighted rock piles with 12 ft deep between them with the lights on the end of each rock pile and you go between them to get to the anchorage. It gives you a great start to Cape May the next day and is worth the extra couple hours from Chesapeake City and is a world of difference.
Check this out and feel free to PM me.
June Tide Table