whoops didn't mean to post already. Anyway has you can see it's just your bog standard garden pond filled with 6" of gravel, 12" of 50/50 peat and sand then 6" of peat.I dug the pond in the ground and packed around the sides with sand with log round to hold it all in.
IMG_0120 by keith Smith, on Flickr
IMG_0144 by keith Smith, on Flickr
CAM00025 by keith Smith, on Flickr
I have quite a few photo's and don't want to bombard you all with them and it's hard to choose the best one's so i can post a link to my facebook album if that's better