I love to get in one or two full moon mtb rides each year. The conditions have to be just right - it has to be after the leaves are off the trees so the light gets through, and the moon has to be in a nearly cloudless sky to give enough light. It's almost a surreal experience, but after a short time on the trail your vision gets so adapted to the light level that you can see almost every twig and leaf. Keep in mind that I'm a 54 year old slow rider, so it's not like I'm flying through the woods in the dark.
Also have done a full moon ride on a rail trail across the line in PA, Sandy Creek Trail. That one was interesting because I had no idea there were so many porcupines over there. I must have seen 20 of them during the evening.
Steve Z