I
love hills like that!

I'd be carefully avoiding the loose stones riding up the first one, though, as it looks bloody steep.
That goes to a hillside hamlet called Horsehold. The road continues to ascend for about another 1 km beyond the few farm buildings, but then splits into 3 tracks more suited to a mountain bike. I think I did tackle the climb on my road bike about 20 years ago but have only done it on the MTB since. It is to be taken seriously as a descent!
I might have another go on a road bike, but I would use my Basso rather than my higher-geared Cannondale. If I do, I will get someone to make a video of it and stick it on YouTube.
Getting back on topic ... I haven't done a century ride for 2 years. I have done a few lumpy metric centuries and a tough 77-miler last weekend. I think I will be ready for one soon so I should do one before the end of the summer.
I definitely would not advise doing a century without eating and drinking plenty unless you were extremely fit and knew what you were doing. I found that my need for food and drink decreased by about 50% on long rides when I got fit, but it did not disappear altogether!