I would suggest a series of easy steps to get to know and trouble shoot your new boat.
Penns Landing to Essington, an easy day sail with the tide, anchor or take a slip at Anchorage Marina the last fuel dock until Delaware City.
Essington to Delaware City, slip only no anchoring, another easy day sail with the tide.
Delaware City to the Cohansey River, anchor or take a slip at Hancock Harbor. A day sail with a taste of the upper Delaware Bay, will get you more comfortable with the chop on the bay.
Watch the weather, tide and current, wait and plan a long day sail to Cape May Canal. If your plan does not have an arrival at the Canal entrance at or close to slack add another day to your trip with a stop at the Maurice River or Bidwell Creek.
The State Marina at Fortescue, mostly power boats and fishing charters is scheduled for dredge some time this year, but is probably not a good option if the bay has a lot of swell. A 2 to 3 foot crest to trough may have you touching bottom.
I will be spending this summer sailing in the bay off the West Coast of Jersey.
1970 Havsfidra 20 by Fisksatra
On the Delaware River at Fox Grove Marina Essington PA