On the north side of Aruba there are some caves; in the past the locals went there to relax and enjoy the day together with a drink and a snack. Now these caves are located in the Arikok National Park, which makes them less easy to reach. Since we both have an annual pass for the National Park, the entrance is free for us; so we entered the park via the entrance of Vader Piet (past the windmills) and then drove over a dirt road with many transverse ridges towards the caves. They appear to be a popular tourist attraction, because there was a coming and going of groups of tourists, all accompanied by a guide.
You are not allowed to use a flashlight in the cave to protect the bats. You are allowed to use the light of your mobile phone on the condition that you point it at the ground to find your way. Flashing is also not allowed because of the bats.
Below are some pictures I was able to take without the flash. First some pictures of Quadirikiri and then some pictures of Fontein. The latter cave has Indian drawings on the ceiling.