5. Tortuguero National Park
If you love turtles, you’ll definitely enjoy the Tortuguero National Park. It is the nesting site for the turtles like the endangered green turtle. The best time to visit here is between April to October where you can watch the hatching of the eggs of green turtles. It is one of the safest spots in Costa Rica because of the security system at the park, and definitely one of the best places to visit in Costa Rica before you die!