I visited Pagandaran, also known as the Green Canyon, in February 2018. It was a wonderful trip in West Java. Consider a long weekend for this trip to be able to check the main sightseeing spots and to be relaxed.
We stayed at the Java Lagoon Hotel, offering an amazing lagoon and beach view. The owners are a Indo-French couple, super friendly and eager to help us discover the area. We had delicious breakfast and excellent local food.
Around Pagandaran we visited of course the Green Canyon which was absolutely breath taking. We spotted snakes, birds and lots of other animals. The canyon ends up with a sort of open rock cave in which you can swim and admire the vegetation. Another very nice spot was a bat cave surrounded by waterfalls, the owner can bring you there.