Traveling to Field trip

I’m having my students in a 15 person class meet directly at a field trip location at the start of class. I’m telling them not to go to the classroom, to go straight to the field trip location. The field trip location is a ten minute walk from our regular classroom, so I thought it would be easy and not an issue at all. The name and address is included on the field trip guide. There is also a photo included on the guide of what the location looks like. I also included my phone number if they get confused.

Is this too hard??

They are freshmen, but I thought a ten minute walk wouldn’t be a big deal. I’ve taught for a couple years, but this is my first field trip at this new university. I used to have students (freshmen included) drive to locations… I was surprised that some of them seemed worried about it.