We just returned from a stay at La Paloma Lodge and had an amazing night hike with Tracie, the Bug Lady and her husband. My wife and I, along with our three girls (yes three girls) loved spotting all manner of spider, scorpion, frog, bat, and insect along the path adjacent to the lodge. We have never met anyone as passionate about bugs and insects as Tracie and her enthusiasm was infectious. Her knowledge is unmatched.
At night, the jungle is a completely different and wild place. Absolutely take the night hike. It is safe. Easy, a short walk on paved road, and fascinating.
They have a great set up with spotting scope, light, and iPad so that everyone can clearly see all of the animals they are able to spot.