If you make it up the bumpy unpaved road to Monteverde be sure to pay this reserve a visit. The tourist information office in town has the details. We did not know of its existence before we visited Costa Rica. Glad we found it. There are different stations available to visit. We joined a night hike for 2 hours which included entry for 24 hrs so could visit in daylight the next day as well. For only $20 per person we had 2 hrs of an expert guide with torches where we saw birds elusive during the day and huge tarantulas etc well worth the time spent plus as above we went back next day to explore more fully. Without any extra effort you will be supporting a unique project started by Swedish children to support the rainforest and educate others to the value of keeping these wonderful ecosystems intact for future generations. We had been sceptical of paying for a guide having fallen over wildlife in Manuel Antonio but the night hike was really unique, no way would we have found the stuff that our guide did.