Article says it took them 6 days.
20+ miles in a day is a pretty darn good pace, especially in a FL summer. Keeping it up for 6 days requires that you be in excellent condition.
I suspect “the group walked,” if indeed they did at all, in the sense that they took turns walking one or two at a time while the others stayed in vehicles with AC.
The distance can fly by if you have a cool marching song...
Hoodies high, ranks closed
The homies march with pants slung low.
Comrades shot by the white hispanics
march in spirit with us in our ranks.
The street free for the brown battalions,
The street free for the grievance lords.
Millions, full of dope, look up at the skittles;
The day breaks for freedom and for skittles.
For the last time the lean will now be drunk;
For the struggle now we all stand ready.
Soon will fly Trayvon-flags over every street;
Old School will last only a short time longer.
Hoodies high, ranks closed,
The homies march with pants slung low.
Comrades shot by the white hispanics
march in spirit with us in our ranks.
It’s to the tune of a catchy little German number from the 30’s.