u/spitfxck

maybe a stupid question but could I travel to Monterrey by bus without a passport if I purchase a ticket in nvl?? It’s a one day trip I’d be coming back the next day. I know a lot of ppl who say they just cross and travel by vehicle without letting customs know they’re going to mty, so I was wondering if it’s possible by bus? Additionally, how safe would it be as a female going alone? Has anyone gone recently?