You do not have to go far far away to Bali or Lombok to enjoy the beautiful beach. Jogjakarta has some beautiful beaches. Especially in Gunungkidul region. It is easy to find beach with white sands there. If you bored with your routine, you can go there. I have information for several beach.
Ø Sundak Beach
Sundak beach is one of the beaches in Gunungkidul that has beautiful white sands. You can enjoy very clean water there.