The guide was very informative about the volcano and how the lava trails got formed as well as the history of the surrounding flora, why certain plaints grow there and others can't. The first half of the hike is fairly flat due to the 1968 explosion causing an opening closer to the ground. The second part of the hike is much more steep, first going upstairs and then carefully navigating lava rocks, along the 1992 trails where lava came from the top of the volcano cone. It's a little tough but the view at the top makes it completely worth it. It is absolutely breathtaking and no picture could do it justice. From the lookout point you are about 2 miles from the volcano on one side andthe continental divide mountain range on the other with a beautiful view of the Arenal Lake. Then we hiked backwards down the same path and were taken to The Springs resort where we relaxed for about 3 hours in the hot springs and enjoyed a delicious dinner that was included.