Spotted in Bristol...

I wouldn't say brutal climbs - just some quite long ones. However, there are only really three hills on the whole route: Burrington Combe after 20 miles or so, Blagdon Hill after about 65 and then just a bit of a climb before decending into Exmouth. Honestly, it's really not a difficult route, I'm just going to make sure that I get a good few fixed ascents of Burrington in my legs before commiting!

At 2am after 65 miles Blagdon seemed pretty brutal, and Burrington isn't a walk in the park either, but then I'm probably not as fit as you.