Perhaps a helpful link for another sort of traffic

[Michi]

Canals and coast sailing that is: http://www.igg.org.uk/gansg/00-app1/canals.htm

[The_Beast]

While enjoying the occasional the high seas battle, I've oft considered coastal as different and interesting, though haven't found much,. To this, is now added ' riparian entertainments'. 

I will say the few times we've had mid-river 'targets' in our darkest Africa battles, I've fared poorly, but delighted in same. This could be fun.

Excellent!

Doug

[Mr. Peabody]

Are you plotting something crafty, sir?
Some interesting bit of river-craft, craft?