Hi,
There are probably several ways to transfer the vids. I've never had to transfer a large number of vids. I am not familiar with all of the ways that may exist, so you would need to do some research on your own. Below are a few ways that come to mind.
You could buy a 10 pak of thumb drives for probably about $30 or so, download the vids onto the drives, and then distribute the drives to your friends.
Google Photos has 15 GB of free storage for those with a Google Account. (I'm not sure, but I believe that you can upgrade with a paid subscription to much more storage.) With the free storage, you can upload 15 GB of your videos and then send a link by email to your travel companions. They can click on the link to play the videos and download them to their computers. You might be able to compress copies of he videos down to a smaller size to lower your 28 GB to a smaller total.
If your travel companions are in the same room (or tour bus) you could use the Air Drop feature on your Mac or iPhone to transfer the vids.
You could upload the vids to You Tube and send links to your friends. Since you have 60 videos you might find it more feasible to create 6 iMovie projects with 10 videos in each one, share out the projects to a movie file, and then upload those to You Tube. You Tube does have some size limitations, so you would need to check You Tubes requirements.
Perhaps others who have transferred a large number of videos will chime in here with more suggestions.
-- Rich