Three months after the young hiker's disappearance

[Bassim]

I am wondering if my sentence is grammatically correct.

Three months after the young hiker's disappearance into the mountains, the police decided to call off the search, despite his family's protests.

 

[teechar]

I am wondering if my sentence is grammatically correct.

Three months after the young hiker [STRIKE]'s disappearance into[/STRIKE] went missing in the mountains, the police decided to call off the search, despite (strong) protests from his family. [STRIKE]'s protests.[/STRIKE]

I don't think such a search can go on for three months.