Something with adrenaline, like say skydiving (though I'd tone it down to windsurfing easily enough as it's an incredible feeling)...and would be followed by say a hot pepper eating contest (as this would mean I wouldn't have to be as careful about making food I share with someone since most people can't handle the spices I put into my food).
Alternately, camping somewhere beautiful...though this would be more for sex than romance (don't care if there isn't a shower). I'd be perfectly fine with fishing or hunting animals on this date.
Perhaps this explains why I haven't been on many dates...I find many of the ones I've been on boring, and for the most part if I have sex with someone I just met (not a date) then I'll drop that person fast while I end up being in relationships with people I've known a long time rather than those I've just met. (I remember some dates fondly from school, but we were just friends who just claimed we were dating after awhile, but nothing changed. We still snuck into movies, which was a lot more fun than paying, perhaps why I'd like something today that sparked an adrenaline rush.)