に行きたくないの

don't you want to go to …?

→ に
phrase Rare #31,646
don't you want to go to …? The destination comes before に. の gives the question a conversational, often gentle tone.
JA: 今日は学校に行きたくないの?
EN: Don't you want to go to school today?

本当にトムとオーストラリアに行きたくないの?

Do you really not want to go to Australia with Tom?

本当にトムとボストンに行きたくないの?

Do you really not want to go to Boston with Tom?

本当に医者に行きたくないの?

Do you really not want to go to the doctor?

本当に病院に行きたくないの?

Do you really not want to go to the hospital?

本当にボストンに行きたくないの?

Do you really not want to go to Boston?

どうして一緒に行きたくないの?

Why don’t you want to go together?