Both ponds have filled up some more after all of the snow and rain. They both also froze over. 

 Mark launched his floating planter into the pond... Only to realise the ice prevented it going very far.

 Mark then attempted to break the ice with a brush (ever so technical) so as to move it closer to the middle. Anyone else feeling de ja vu over the duck house??

 Mark recruited Eric to help, although Eric's method seemed much more aggressive.

 Mark and James then used a stick with a rock on the end to try to anchor the planter closer to the middle, (again VERY technical).

 Needless to say, it didn't work... It just snapped the stick in half.

 Eric then realised they didn't really need the planter in the middle of the pond, as this would make it nearly impossible to plant anything in it, come Spring.

 Mark and Eric generated a crowd, I'm pretty sure they were hoping to see one of them fall in.

 The snow helps show the kinds of wildlife there is in the reserve, judging by this I'd say a human and a bird of some sort.

 James and Tom got to work transferring rocks from one side of the pond to the other... (I think I read a study on prisons making prisoners do work like this?)

 Sharon and Mark filled the bags full of rocks for Tom to transport them to the other side of the pond, a journey that is hard enough without the ice, snow and wheelbarrow as factors. 

 Mark placed the rocks on the shore.

 James spent his time working to clear the path of the overflow water source, so that the ponds would fill up more efficiently.

http://www.hookgatenaturereserve.org.uk/image/tid/7?page=27