Note: I've made an extension for this set, to make mixing of ground under water and shore above way easier and make nicer shoreliens as well: BlueWaterExt. It'll make water in your maps even more awesome :)

This is the BlueWater blocks with all the different surfaces for the actual physics of what you're driving on.

So you can have the water effect but it feels like dirt (as in the original blocks), so you get a kind of river bed racing feeling. (These are the same blocks as the original BlueWaterDirt blocks, also on itemexchange)

Or you can have it be like ice, if you want there to be really slippery water puddles on your road/platform track, for example.

Or you can also have sand/earth as the physics, so it not only slides like dirt, but it also slows you down (also great for beach maps, I think :) )

Also included are asphalt, snow, grass and the slows-you-down-a-lot tall grass.