Off road 700c x 23's?

Crazy question I guess.  Today I went for a ride I downloaded off 
Bikely.com.

The ride took me from Brisbane to the Sun****ne Coast via Old Gympie Road. 
Unfortunately I did not notice that this road was mainly off road (more
like 
a goat track).  I did not get a puncture although I wondered if there was
a 
Roubaix type tyre designed to be light but tough enough for a bit of off 
road - or are all tyres with the Kevlar in them in this category?

I can thoroughly recommend the ride (there's lots to download).  Also, it 
was the first time I got to try out my GPS as a navigation tool instead of

just being a very expensive cycle computer (I've only had it since Dec 
2006).  Whilst I hate this particular company's after service/warranty
(what 
after service/warranty?), I was very impressed that I was able to download

the route and ride without having to refer to a map as such - rather I had
a 
distinct track to follow on he screen and if I deviated even just a few 
metres, it was obvious straight away that I had taken the wrong turn so
not 
much lost energy backtracking.

Hopefully you all had a decent weekend whether you were off or on the
bike!

BtC