Baking
I found w6r1 easier, but I commented above that it sounded like it was going to be easy going compared to the 20mins, and got warned that many people struggled, so maybe proceed with caution.
amiga and watching(if my maths is right). Have fun on w6r3.
I'm on NHS podcasts, and for the last minute, it was suggested that if you were feeling OK, you upped the pace, so I crossed the road, and upped the pace for the last 30sec or so.
Did go for the flatter route that doesn't involve streams etc, but was out for 37 mins (warm up, run, cool down), and got over 5km! Now, faster hahahahaha!