Catrin, if you're bored, here's the link to the event i'm doing.

I did the 40km event last year & there are some SERIOUS hills(ok, perhaps not for you in Mountainous areas) http://www.dwellingup100.com.au/

I've pretty much scouted out all the big hills i can find on and off road...

Now all I have to do is meet the time limits for each section