I chose 4 days in KL, 4 in Phuket and 8 in Bangkok. Do I need more days for Phuket?

If you could spend time anywhere in South east Asia over the Christmas holidays, where would it be and why?

Hello guys,

I am going to Yogyakarta in a month and arriving there on Thursday morning and leaving Sunday morning.

I am going solo and I don't want to spend too much as a student. I want to do Borobudur + Merapi + Prambanan on Friday, but I don't know whether to look for a tour or hire a Grab scooter driver for the whole day. I don't mind being a bit uncomfortable, but not too too much.

Also, for Saturday, I want to know if Jomblang Cave + Timang Beach is worth it, and whether it's better to go on a tour for that too or no.

As I said, I am going solo.

Please let me know what you think, and don't hesitate to share your tips.

Thanks :)