We know what you are thinking: What to do in La Fortuna? La Fortuna is an adventurous, nature-filled vacation spot that is fun for all ages. Welcoming tour guides and helpful locals make it a family-friendly location, while zip-lining and hiking trails make it ideal for thrill-seekers. Bring your camera and your rain poncho and get ready for Bird watching, howling monkeys, Arenal Volcano National Park and the time of your life.