Blackwater has marked kayak and bicycle routes.

Here is the link for the bike info
http://www.fws.gov/blackwater/cycling.html

and a map of the makred routes (Not necessarily the Terry routes)
http://www.fws.gov/blackwater/pdf/bikemap.pdf

and here is the link for paddling
http://www.fws.gov/blackwater/paddling.html

They recommend you buy a water trail map from the "Friends of Blackwater" when you get there. I have friends that have gotten somewhat well, distracted, paddling in similar environments so this is probably a good idea.

I'm thinking I might go over there in the next couple of months and maybe can do some reconnaisance, and perhaps to select a motel near the refuge, but that's also in a safe neighborhood (for our bikes and boats).

Martha