I was with friends at Youbou BC on Lake Cowichan. I was standing on a ramp to the wharf when a noticed a really bright light across the lake just above the mountain to the west. I would estimate the distance about 2 miles away. I watched it for a minute, it was just sitting there not moving, then all of a sudden it shot to the left a distance of about 5 miles, stopped for a second then shot back to the original spot.it moved this 5 miles in about 1 second. When it came back to the original spot it then,very slowly sunk into the trees on the mountain.that was the last I saw of it.