If you are visiting Mesa Verde you must tour the Cliff Palace, Balcony House and Long House, each tour available for $3 and guided by a park ranger. The various web sites, including the official government site warn of possible limited availability of the tour tickets, which you must buy in person for the three major sites in order to tour them. If you are planning your trip to visit Mesa Verde, you feel forced to at least consider the bus tours offered by Aramark, who also operates the lodge so you are insured the chance to visit at least one of the sites offered. We elected to book the 700 Year Tour, specifically so we could make sure we saw Cliff Palace during our two day stay at the park. The price for the tour is $45 for an adult. This gets you a bus ride on a school bus, not a comfortable motor coach as advertised, a park ranger narrated tour and several bottles of water, which you need to take advantage of due to dehydration and elevation sickness. The park rangerās insight to the area was very informative and the bus driver was very friendly, however when weighing the difference of $3 Cliff Palace tour and the $45 bus tour, much of what the ranger tells you on the bus could be obtained from pamphlets available at the book store for much less. The tour includes many stops at the free sites along the park loop. Our ranger was an anthropologist and specifically wanted to work at Mesa Verde because it is not a natural park, but one that focuses on culture and the people that lived there. We really enjoyed our ranger and were very disappointed when we reached the real reason for the tour, which was the visit to Cliff Palace to find we were being dumped off to join others who had opted to only buy the $3 ticket. Of the 90 or so people who take the Cliff Palace tour, about 45 were from our bus tour. We had presumed that for the extra cost we would have been given a more private tour, hopefully only our group of fellow bus travelers, but unfortunately not. Luckily, the day before we headed up to Mesa Verde Park, we stopped at the Colorado Visitor Center in Cortez, which in addition to the park also sells tickets to the various Mesa Verde sites, up to one day in advance of your visit and including the day of your visit. The visitor center opens at everyday 8 am until 5 pm, except for holidays, some days they are open until 6 pm. Much to our surprise, in the middle of August, tickets to all the sites were very available. We actually picked the tour times we wanted to do the other major sites based upon recommendation of the agent at the visitor center. Some tours have larger gaps between them based upon when the rangers take breaks, so you can get a view and chance to take pictures without anyone at the site from the previous tour. Unfortunately, we could have booked the Cliff Palace tour at the visitor center and saved $168 for the four of us compared to the tour we booked on-line. When we discussed how we thought the tickets would be harder to get, we were told that most of the local school systems in the area were back in session in early to mid August, which could have explained the ticket availability. At each site you will be given a prepared speech from the ranger on the hazards of the site and the tight spaces, tunnels and ladders you will need to traverse during your tour. If you are at all in reasonable shape and donāt fall apart when faced with 30 foot ladder climb at a very shallow angle, you should be fine. My wife is claustrophobic and afraid of heights and she really enjoyed all three tours. The trick is to not over think it and to keep hydrated. Remember the park is warm-hot in the summer and the elevation is 7,000 ā 8,000 feet above sea level. Most visitors to the site are not accustom to how this elevation impacts your body regardless of your physical shape. The rangers indicated that over 10 people had been taken out of the park by ambulance during the first two weeks in August, simply do to dehydration issues. If you are traveling in mid to late August you should consider skipping the bus tour and buy your tickets at the visitor center. Make sure to sign the guest book at the visitorās center and you may get a free Colorado baseball cap. Regardless the volunteers are really nice and helpful.