We spent a week and a half in Monteverde this month and our time in the Bajo del Tigre part of the Children's Eternal Rainforest was one of the highlights. This is a fabulous organization staffed by passionate people who are doing amazing things with minimal resources. The self-guided trails are easy to follow with an information packed booklet. There is a fun children's house with some good educational activities for kids ages 5-10 or so (our kids are 8 and 6 and we had to drag them out of there after about 30 minutes to do the hike). They're also just putting the finishing touches on a green house where they're preserving the different plants of the forest for use in re-forestation projects.
We also did the night hike and this was great as well. I'd recommend you bring your own good flashlight (they have some for sharing - but better to have your own). And also you should have the right expectations. The amount of wildlife you see on any given night will certainly vary, as it's not a zoo. We saw tarantulas, wild beetles, other cool spiders, stick bugs, and bats. But walking through the forest at night is just a different and awesome experience on its own. The feel of it and the sounds you here are just different.
The part of the CER that you see in Monteverde is a very small part of the huge overall forest this organization protects. There are several interlocking protected reserves in the area, and the CER is by far the largest of the group. Your money spent here goes to a great organization with a fantastic story (check out their website for the story).
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