Let's see. We're leaving tomorrow night to drive overnight to a spring, dive it all day, then drive into the night back here. Five hours each way, which means it's likely to be 2/3 driving and only 1/3 diving (counting the surface intervals), but it's better than the ditch I dove last weekend. (And yes, that was a literal ditch, but I recovered 12 discs from two holes at one of the local courses. )