Would North Norfolk's open beaches have made a good invasion site?

Did North Norfolk offer easy landing beaches without natural barriers?

No. Offshore currents and tides complicated the approach, and the marshland behind the beaches depended on continued drainage.

An open-looking beach did not guarantee an easy approach or a passable route inland. North Norfolk's coastal waters presented currents and tides that complicated a landing. The restricted extent of its marshes depended on drainage, so stopping that drainage could quickly make movement inland much harder. Unpowered invasion barges would be particularly ill suited to those coastal conditions.