Cave tubing will take you to explore the beauty of the underground cave. Kalisuci Cave would be a good choice for your traveling plan. Located in Gunungkidul, Yogyakarta Kalisuci Tour offers the exploration of 5 caves.
Suci Cave, Glatikan Cave, Gelung Cave, Buri Omah Cave, and Brubug Cave, in one route. During this 2-hour journey, you'll witness the beauty of nature as well as improving your knowledge on topics like how caves and limestone area are formed.
Also, spare your time to visit Nglambor Beach, Gunungkidul, to enjoy snorkeling and observe the beautiful marine life.