This huge Hippocampus, which I doodled nine days ago, isn’t so much a lesson in marine biology as it is a lesson in paying attention while you’re GPS-doodling.

I’d actually set out to do my seahorse doodle a day earlier, but I abandoned the effort after 30-some kilometres because I missed some details in the pectoral fin, overshot a turn on one of the trunk rings and disastrously lost my way at the back of the coronet.

The lesson bears repeating: a GPS tracking device doesn’t come with an eraser. Plan well and pedal carefully!

Doodling this enormous seahorse required just over 100 kilometres (62 miles) of cycling…not including the 30-some km I spent on a failed effort the day before