Has anyone used walkie talkies to communicate up to 7 miles?

So there are three of us arriving at Rock Harbor from Grand Portage around 3pm on June 3rd. What is the fastest way to get to Daisy Farm Campground? Do you think it will be possible to secure a shelter for the night?

As we only have limited time on Isle Royale I am hoping past hikers will share locations that they found unique wildflowers. I am going to be in the Rock Harbor area to Daisy Farm from June 3 through June 6. I would really love to see the calypso orchid and striped coralroot. Information on the ...