Iguazu Falls, straddling the border of Argentina and Brazil, is a breathtaking collection of hundreds of waterfalls. The Argentinian side offers a more immersive experience with various trails, including the accessible lower circuit and the thrilling Devil's Throat viewing platform (accessible by train). While solo exploration is feasible, guided tours provide valuable insights into the local flora, fauna, and history. The falls are impressive year-round, but the rainy season (November-March) brings the highest water volume, potentially impacting trail accessibility. Expect to spend a full day or two exploring both the Argentinian and Brazilian sides. Costs vary depending on transportation, park entrance fees, and activities, but budget accordingly for a moderate to high expense. The Brazilian side offers panoramic views and shorter trails, making it ideal for those with limited mobility or time.