Hello, thank you for your review. We are only able to respond in English, but will try to address the points you made. Firstly, we are terribly sorry you were dissatisfied with your tour. We are currently conducting a guide training program so they are better able to provide more and improved information in clear English. In regards to you concerns of the safety in the Dark cave: Dark cave is an independently running cave. The mode of operation from the Dark cave is beyond our control. The Dark cave always has trained staff and there has never been an issue with someone being hurt or falling from the zipline. We encourage all of our guests not to dive into the mud, as they may get it in their eyes. The guide takes people slowly through the tunnels, so they may be careful with their step. The adventure of exploring the dark cave is the primary appeal for many, as if there were padded walls and railings, it would not be as fun. You would not find a cave such as this in a western country. All of our guides are trained in first aid, but they do not take first aid kits into the cave, as the conditions do not allow for first aid. In case of an emergency, they would extract the person from the cave and perform medical attention where there is no mud or other debris that can cause infection. There is always a trained guide present when there are people ziplining into the water. There is also extensive insurance while inside the caves, so if injury were to occur, all of our guests will be covered. In regards to the drinks at the end of the tour, the rum and coke is complimentary and not included in the tour price. This is a gift we give to our guests thanking them for choosing our tour. However, we thank you for your suggestion, we will look into having other options for those who do not wish to drink rum and coke. Again, we are sorry for your experience. If you would like to get in touch with management, we would like to set this right. We appreciate your concerns and we will take all of them into account when improving our tours with the utmost concern for the safety of all.