During The 4 hr drive, with food and bathroom stops, our guide explained the geography of the land, local history and points of interest. On my day, the tour was all young people, 20-30 yrs old, from a variety of countries, all VERY pleasant. Once inside the park, our guide stopped for photo taking, and gave us a drive thru from that particular entrance. He provided a map of suggested hiking during the 4 hr time limit.. Being in my 60s, I tagged along with the young people in the 90f+ temperatures, up hillside trails..even they had difficulty! But it was amazing! Breathtaking! There is no way,even if there was more time allotted to see it all! Besides, we all were pretty exhausted! I was very happy with the experience! Highly recommend this very long day experience! I saw enough of El Capitaine, the Half Dome and meadows and mountain views to realize how beautiful the park is. Great Tour!