A three- kilometer -high plume erupts from the Popocatepetl volcano, east from Mexico City.
This would charge each person per kilometer driven.
The drive is designed to avoid any and all backtracking, and is a clean 2000+ kilometer circuit.
It is the longest designated trekking trail of it's kind in the world and takes the adventure trekker on a 5330 kilometer journey from Cooktown.
This 10 kilometer square island is a delight.
It is less that half a square kilometer, and although it's population is less that 1000 people, it gets almost 4 million visitors per year.