Wondering about the best things to do in La Fortuna, Costa Rica (on a budget)? In this article, I list 5 either free or cheap activities you can do in La Fortuna, including La Fortuna waterfall, an amazing free hot springs river and a hike near Arenal Volcano. These are all great for solo travellers, couples or families with kids! After reading this post you'll no longer ask yourself what to do in La Fortuna!