The men who found her say her van got stuck on the trail, so she got out and fell into mud that she said was "like quicksand."
The U.S. Coast Guard has seized the boat used by Americans Brian and Lynette Hooker.
Authorities in California said Saturday they didn't find the remains of Kristin Smart, a 19-year-old college student who went missing in 1996, after finishing their search of a home tied to the man convicted of killing her.
Nearly 30 years after 19-year-old Kristin Smart disappeared, California investigators conducted new search warrants as part of their ongoing probe into the location of her body.
Families, Central California tribes and community members gathered to honor Indigenous women, girls and relatives whose missing or murder cases remain unresolved.
Two U.S. service members are missing in southwestern Morocco after participating in annual multinational military exercises, according to the United States Africa Command.