Some people might argue that scuba diving is a subcategory of wreck diving.
I've always enjoyed cycling and can't really remember a time when I didn't own at least one bike. The UK isn't the best place for road cycling so I guess that's why I like the Whyte so much it's great for a day out on Dartmoor even when it's pissing down.
And yet others may argue that scuba and wreck diving are both subcategories of life itself. :)
I imagine Dartmoor would be a good place for bike riding, certainly scenic enough. As long as you weren't run over by a tourist you'd be fine!
Haha, Life don't talk to me about life.
I'm fairly safe most of my cycling on the moor is off-road using the bridleways apart from the odd sheep or pony to run into its OK.