There can be few sights scarier when you're out mountain biking than this - a fully grown grizzly bear galloping through the trees towards you.

Mountain biker Brad Paras filmed this on his GoPro last August. He explained: "My cousin Dan and I were charged by [this] grizzly sow three times.

"We were riding single track just outside of Jasper. I rode to the top of a hill and applied the brakes to wait for Dan and plan my descent. My brakes squealed a bit, then I heard a growl and looked to my right to see [the] grizzly bear charging at me.

"I heard a growl and looked to my right to see a grizzly bear charging at me."

After careening down the hill a bit on my bike, I was able to distance myself from the bear. According to Dan the sow stopped on the trail where I had been standing.

"When Dan arrived on the scene, he created a distraction, which drew the bear to him. He managed to grab the bear spray from his bag in time to brace himself, but the bear stopped approximately 10 metres from him - just outside the spray's effective range.

"Meanwhile, I worked my way along the bottom of the gully toward Dan so that I wasn't alone in the rough bush.

"As I reached him, the sow and her cub charged toward us slightly once more before heading away in the direction that we had come from."

Sounds a bit too close for comfort to me...

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