Parque Nacional Barra Honda is renowned for its fascinating limestone cave systems and challenging hiking trails, offering a unique adventure in Costa Rica. Accessibility to the park can be tricky, often requiring a 4x4 vehicle, especially during the rainy season (May-November) when roads can be unpaved and muddy; the dry season (December-April) offers easier access but higher temperatures. While some hiking trails can be explored solo, cave visits are strictly guided by park-certified rangers, ensuring safety with provided equipment; prior reservations for cave tours are highly recommended due to limited capacity. A typical visit, including a cave tour, lasts approximately 4-6 hours. Costs include an entrance fee (around $12-15 USD for non-residents) plus a separate, mandatory cave tour fee (roughly $20-30 USD per person), not including transportation. Visitors should be in good physical condition for the strenuous cave descents and ascents and come prepared with sturdy closed-toe shoes, water, and insect repellent. The park also features a viewpoint with panoramic views and opportunities for wildlife spotting.