I need to make a black forest cake for Sat. It will be frosted with whipped cream and filled with cherry filling.  It is going to a restaurant for a party and it is very hot here. Can I freeze it for transporting or does anyone have a good idea.

I have never frozen a decorated cake, but I've read from and gotten advice from others on here.  They say to put it in the cake box, cover it very well with foil, and then cover the foil with saran wrap.  They say when you take it out of the freezer to let the saran wrap and foil on the box until completely thawed, because this will catch the condensation and not the cake.

I'd wrap in acetate...

http://www.bakedeco.com/detail.asp?id=21589&categoryid=117#.U_9wPaO1muI

It needs to be the proper temp for serving.  If it is frozen for delivery it likely will still be frozen when they are ready to eat.  Having it refrigerated and nice and cold for the delivery would be a much better option.

Actually it probably will depend on what cherry filling you use.   If you use the sleeved; jam or a can of pie filling you will be good to go.

As for how fast it might thaw - that will depend on the size of the cake.  If it is 10" round or less it should thaw in about 1 hour.  Anything larger of course will take much longer at the very center.