hi.... wanted to know whether it is possible to go from the mara direct into serengeti via the sand river gate, legally or on the sly

SLY but I doubt you find any driver to do this.

I am tempted to suggest to walk ;-)

That's cute spassvogel...... funny name u hv..... what does that mean

The Sand River Gate is NOT a legal crossing between Mara/Serengeti. It's closed. There are no border facilities here for Visas.

We crossed here once (having landed at Keekorok airstrip on our way to Cottar's Camp), just to follow a lion pride, but knew we could only go so far before the patrol would be on us.

africalover - it's German - means funster/jester/joker/jokester - all that came up at the dictonary

One or two fodorites translated it to FUN BIRD; I have no clue whether the latter is suitable.