Kayaking, Canoeing Or Just Two Men In A Boat?

Today was the usual Sunday food shop followed by our customary pint at The Horseshoes but instead of heading straight home we again stopped off at the Archbishop's Palace in Maidstone for a quick stroll along the riverbank as it was such a lovely afternoon.
The town is considerably quieter on a Sunday with much reduced traffic and it almost felt quite peaceful as we strolled along next to the river - and of course we had taken our cameras with us to try and get our shots for the day. We hadn't come across anything particularly blipworthy until we are walking under one of the town's main bridges and could see the sun illuminating the underside of the bridge and casting glorious reflections on to the water below. On its own it was good enough for an image but it was only as I was scanning the horizon that I could see two men in a boat were approaching and waited until they appeared under the bridge before clicking my shutter and this was the result. I particularly love that you can see the spray from their paddles!
Of course it wasn't just two men in a boat - they were either in a kayak or a canoe. I must admit I've always got the two confused - both are waterborne vessels, both use paddles and both have been used for thousands of years to prevent homosapiens getting wet (with varying degrees of success) in rivers, lakes, seas and oceans.
So here comes the official definitions (which I looked up when I got back):
A canoe is an open top design, with the paddler(s) sitting or kneeling usually using a one-bladed paddle, Canoes are wider, making them slower but more stable.
A kayak has a closed design where the paddler(s) has their legs outstretched in a sitting position and uses a two-bladed paddle. Kayaks are narrower, making them faster, more nimble and easier to pilot.
So to answer my own titular question these guys are kayaking and not just two men in a generic boat! :-)