Renting a 4 wheel drive vehicle for the day (to visit the National Park)

[cmp03]

I am looking to rent a 4 wheel drive vehicle for the day.  We would like to visit the national park.   I have checked online with different companies and they seem to have a 3-5 day rental minimum.  Anyone have any recommendations or experience that they can share?

[itsanita]

I am interested in this as well.  

[CT Sean]

4wd is not necessary for the park.  Any of the 2WD trucks that divers use are adequate for the very bumpy roads through the park.  I don't know if that helps find a 1 day rental - I've only ever had the trucks that are included with a week of shore diving.