Have just ridden bike from home to school, and am not dead! According to
CycleVancouver, I covered a distance of 8.6km that going 15kph should have taken me about 35 minutes. I think it actually took me more like an hour and twenty minutes, but I think that's probably because I was by no means doing 15kph the whole way (maybe 5kph?). I had to stop and rest a couple of times, and what they mean by a gentle hill is not what I mean by a gentle hill.
Not that there weren't several lovely effort-free coasts downhill - Ontario Street and the Mountain View Cemetery spring to mind. Gorgeous, of course - even if I can't really feel my legs. I'm not gasping or passing out or anything, but there's a definite jelly-leg thing going on. Upside, after the first half-hour or so I was more or less into a groove, even if when I finally got to school I was bright pink in the bathroom mirror - exertion, not sunburn, fortunately. I always turn pink.
We'll see how pretty it looks on the way back, when I have to go back up the hills I came down and down the hills I struggled up. On the whole I think the uphill parts were more on the way here than the way back. *crosses fingers*