the easiy way to do ...
1. get a high power monster truck with high speed
2. DO VERY GOOD WATER PROOF JOB
3. Get the following tires from ProLine or other brand
4. You are all set to GET WET...
細轆都得, but MONSTER Size will be safer and you can do TURN AROUND! But if you turn with smaller size, most likely you'll have to DIVE INTO THE WATER TO GET YOUR R/C back...