It is a half-day from the mouth of the Patuxent River to the mouth of the Potomac
. If you are a ways up the Patuxent I suggest moving to the sweet little anchorage in Bow Cove a short distance up Mill Creek. From that anchorage it is a one-day trip to Ingram Bay. There is a nice anchorage across from the stack a mile up Cockrell Creek, the holding is good and it is well protected form north and west winds. Use care crossing the mouth of the Potomac, it can be rough and there is some large ship traffic.
BTW, you have posted in the Engineering and Systems section, try moving your post to Scuttlebutt - Destinations, you will get a lot more replies there. Also, for current ICW
information, Cruisers' Net can't be beat. Cruiser's Net
Congratulations on casting off the dock