Here are the parts I found interesting from the quoted article, my responses in bold.
"It’s not like her to be so adventurous to drive to Big Sur,” [her sister] says. “Normally she stays local.”
This answers the question of whether if was normal for Areli to travel to Big Sur or similar outdoor places: it wasn't.
"Garcia’s disappearance came just about a month after another young woman from Salinas, 20-year-old Kayeleigh Gammill, went missing in mid-August. Her remains were found in Big Sur, and the Sheriff’s Office is now investigating the case as a homicide."
Awfully coincidental. There is not much information about Kayeleigh online, but here's one article: Family looking for answers after Salinas woman, Kayeleigh Gammil, was found dead in Big Sur - NewsBreak