in the sims 2 ppl have made pool with beach water and were ablr to move the drving on the ground help please?

Answer 1

If you register to be a member of MTS2, you can download this tutorial
http://www.modthesims2.com/showthread.php?t=131752

And if you read further down the thread, there are links to more swimmable things like beaches.

I think they are pretty cool. If your sim forgets to get out with the ladder, they will swim around on land and in their house too. :)