Finding the location was a bit difficult at first, as there are many similar tours near the map on the app. Visitors should contact the number on the voucher first. The tour includes historical disaster spots and off-road (wet and dry) tours around Merapi. We were lucky because our guide was excellent and professional in his explanations and photography. The jeeps also vary, from old (somewhat rusty) to new, so it's also a matter of luck. The journey and spot tour were very enjoyable; we highly recommend choosing the sunrise package. At the beginning, the staff was very good at explaining the spots to be visited and what to expect. You can also exchange packages if you don't find one suitable. Keep some cash with you, as there are some add-ons you can buy from locals, such as raincoats, off-road photography services, and souvenirs.