First time in Yogyakarta and I wanted to do something other than just visiting the temples. I made this itinerary:

Day 1:
To Yogyakarta
Stay at Aloha Hotel Yogyakarta
Rent scooter
Go out for dinner

Day 2:
Jomblang Cave
Pindul Cave

Day 3:
Kedung Kayang Waterfall
Borobudur
Bukit Rhema Gereja Ayam (chicken church)

Day 4:
Prambanan Temple
Puppet show
Tempo Gelato
Ratu boko (sunset)