Muddy pond bed near Buckingham/Silverstone

OK, heres a decent muddy area that is at one end of a small private fishing lake.

To get this place, park on a road called Bycell Road near Lillingstone Dayrell, not far off the A43 a few miles from Silverstone.
If you look to the south from the marked location on the map, you see a large concreted area at a field entrance gate. There is a small layby there were cars park for walking dogs etc. Cant miss it.
Jump out the car, and go through the gate and follow the path across the field. At the edge of a wood the main path turns 90degrees to the left. Carry straight on over a stile on to a path that runs along the edge of the wood, there will be a farm house to your right if you heading the right way. At the bottom of this path the path turns left 90 degrees again. Instead of this, just carry on down the hill through the trees, using the fence to your right as a guide.
A small walk through the trees brings you to a collapsed metal fence (the signs say private but I have never ever seen anyone down there) and the egde of the lake/pond. 
Basically, you should either be stood right in front of a huge mudpit or it will be slightly to your left. It normally stretches the full width of the pond, and the amount of uncovered mud is dependent of weather, so there is more is summer but always some even in winter. On the Google maps you can see a small boat floating, everything to the left of that should be mud. You cant be seen from anywhere while your there, and clean up is easy as there is a whole pond to swim in.  Theres some nice logs that lay across so you can walk and jump in the deepest area with out walking in the shallow bits.
Caution, it is that smelly organic silt type mud, so even after a wash off you will smell till you get a proper shower.It is nicely deep in places, so if your into your full immersion stuff you will be able to go right under.