Cueva Ventana offers a scenic natural experience in Arecibo, Puerto Rico, requiring a guided tour for safety and preservation, which typically costs around $15-$20 USD per person. The site involves a short hike to and within the cave on uneven terrain, making it unsuitable for those with mobility issues; comfortable closed-toe shoes are highly recommended. Visitors should allocate 1 to 1.5 hours for the full experience, including the hike and guided exploration. While generally open year-round, it's wise to check their official channels for potential closures due to adverse weather or heavy rains. This destination is not suitable for solo unguided visits due to safety regulations, and the mandatory tours provide valuable insights into the cave's ecology and history, culminating in breathtaking panoramic views from its famous 'window' opening. Arriving early is advisable to avoid crowds.