Yeah, those 2.5 mph kids should be whooped. I was out a couple weeks ago and really had to concentrate on walking faster to keep up the day we came out. However, the day before, while they napped after we reached the new campsite for the night, I went out and scouted the road we were to travel down to the beach. On other bp trips, I have to wait for the younger ones to rest so we can continue. On the other hand, I get more tired now, but can still do week long trips. It is more tiring now though.