Do you believe everything you read?
A full Moon gives out nothing like as much light as a streetlight something like 100x less.
I say Bamber would have walked, ILB says he would have driven we are are not saying the trip was impossible.
The question I have for you is Bamber could have walked / jogged somewhere between 4 to 6 miles per hour. What speed could he cycle at on roughish terrain in the dark? if it's much less than 10 mph he might as well go on foot.
Do you really have no idea how much light you get on a moonlit night? I see it with my own eyes, I don't need to read about it.
I go out on my bike at night and make regular night rides because I enjoy it. I do it all the time, and I take photographs of the landscape and night sky, to give me something creative to do whilst I'm out there.
Technically speaking you might not get as much light as when you are standing under a streetlight, but with a full moon, you get an amount of light that will always surprise you. It seems impossible that you could get so much light from the moon. You wouldn't predict it if you didn't already know.
But Jeremy Bamber would be familiar with that feeling, because he lived in the country and often worked until it got dark. Living where there are no street lights you'd be very aware of the effect of moonlight.
As for walking speeds, average walking speeds are more like 2.5 to 4 miles an hour. On his mums bike on footpaths, he'd be doing double/treble that, and treble and faster on roads.
The simplest answer is often the correct one, so he probably cycled. Also he took his mums bike a few days before, so everything fits.
Cycling would have been quite easy, not impossible or laughable as Jeremy Bamber falsely stated. If he was innocent he wouldn't have said that. If you had never done a night ride before and you was innocent, then you wouldn't know one way or another how easy or hard it was. And yet he was emphatic that it was both impossible and laughable.
The lady doth protest too much, methinks.