Its a little bit of a drive from Millsboro (30-45min) but
https://www.google.com/maps/place/Bloodsworth+Island/@38.176659,-76.072945,14z/data=!3m1!4b1!4m5!3m4!1s0x89b9bfba487e9c59:0xb189eb99f9f7392d!8m2!3d38.1768812!4d-76.044993
is a place I have found very interesting. Check you NFZ
Other than...