Costa Rica is one of the prettiest countries you can visit; it's full of exceptional wildlife, beautiful scenery, and wonderful people. However, always remember that to be a responsible tourist there are some do’s and don’ts you should follow:
Costa Rica rafting operator Rios Tropicales recommends researching the training, certification, and safety procedures of your outfitter for adventure trips that require "hard skills" like river guiding, canopy tours, rock climbing, mountain biking, etc.
i-to-i, a voluntourism company with projects throughout Costa Rica, recommends bringing a camera with a decent zoom, high resolution (7 megapixels or better) and waterproof case or bag to carry it in. Even if it is supposedly dry season, be prepared for rain.
A fellow World Nomad, Alexia, went to Costa Rica to work with sea turtles and ended up working with the local mosquito population instead:
“After three straight nights of mosquitoes buzzing around my head I can highly recommend investing in the $5 mosquito net for your bed if you are in an infested zone. The buzzing can be quaint on night one, but by nights three, four and five you will be at war if you don’t have a net.”
Learn to Appreciate rainy days like this nomad:
"It has rained here EVERY day since the beginning of rainy season; like clockwork between 1pm and 3pm. I've always appreciated rainy days (here and there); the world is still, its good naptime, there’s a nice fresh smell afterwards... "