This was probably one of the larger icebergs we encountered across the North Atlantic in 2006, probably 60-80 feet tall. Probably for the best that we kept distance, there's a fair crack that comes up from the top of that arch, and when that iceberg eventually split..
There's also a bird skimming in the very lower-right of the image, but I doubt it's large enough to be seen well even in a moderately large print.
I am so looking forward to seeing polar ice again next January!