We wee crammed into a small tour van at 7 in the morning, then driven around for an hour picking others up at different hotels. We were crammed into seats like sardines- no legroom or arm room, every single seat taken. The guide was pleasant, but she spoke very poor English and very little Spanish. Inside the van, we had to wait for 30 minutes to go through Brazilian border control and another 30 minutes at the Argentinian control. Once in the park, we had to pay for our park tickets, only to learn that the Argentinian side only took cash. Our guide got us through border control and helped secure tickets at the park for us. When entering the park, she did not look back at us, and we were walking slowly with two small children. We fell off the back of the group and she didn’t notice for a while. The train to the devil’s throat was super packed, four to a row. Once at the Devils throat, there was more waiting, then a .75 mile walk across bridges to get to the falls. The falls themselves were magnificent and well worth the trip. The kids, 7 and 9, were complaining most of the time about the 93 degree heat. After that, we took another slow, cramped train to the upper and lower loops to the other falls. Most of the group wanted the lower walk, because it has better views. My kids were hot and tired and didn’t want steps, so we took the easier upper path. The guide went with the other group, so we were left on our own. The guide told us nothing about the Falls, and the only “guiding” she did was to say things like, trains now, bathroom now, meet here, etc. Our loop took less than one hour, but the other one took over two hours, so we had to wait around for the other to walk and eat. We were basically sitting around on our own for two hours, just waiting for people to get back. On the return trip, we pulled over to the side to wait. We sat packed in the van for 20 minutes outside a Show place, not being told what we were waiting for. Eventually, we found out that some passengers had another tour after the Argentinian falls. 20 minutes later, we found out that we were the ones with the other tour to the Brazilian side of the falls! We were left to wait for ano5er driver at the Churrasco place. Luckily, the other driver came ten minutes later in a private car and took us to the Brazilian falls. He was wonderful, attentive, kind, and accommodating. He stayed with us, helped us, advised us, etc. I would suggest calling him or someone like him instead of group tour.