We did a guided tour in the morning and then hiked around by ourselves. The guide was good to point out plants and animals we wouldn't have otherwise seen like the quetzal bird. The trail we went down with him was pretty tame. Then we walked one of the other trails ourselves that went through a hanging bridge and brought to a few different viewpoints. The highest viewpoint was really neat since it was clear we were literally in a cloud. The other trails had more ups and downs so were a little more active. Since we went when it was raining it wasn't overly crowded, and the second trails we did we barely saw any other people. Definitely bring a poncho or raincoat and warm clothes and waterproof shoes.