Having failed to find 2004-04 the previous afternoon we had another go and it was still hidden sadly. Then went to look for 84 which we also failed to find, I guess it is either well hidden or not close to 83 to the WNW. Found an interesting looking hole (2007-73) walking entrance down a snow slope which then went down a bit to a chamber. Olly looked at the continuation which was a bit snowy & small. We will return later in expo.