Every March the peaceful atmosphere of this alpine lake is shattered by the noise of high performance motors: the Lake Rotoiti powerboat championships. From a distance the sight is amazing. the giant rooster tails thrown up by the big guys dwarf the support boats:

Up close, they look even more impressive:
Although the ride can get a bit wobbly:
and sometimes there did not appear to be all that much room at the mark:
Even the older boats were dancing:
You can find out more about this event here.
This blog presents the images and observations of someone who has had a long and successful career, ranging from heavy engineering to environmental sciences, from paper machines to marine biology.
The digital revolution has enabled Graeme Robertson to devote much of his time to a rediscovered passion, photography. His images have won national competitions and been published in magazines and newspapers.