Before setting out for scientific research, the location is picked based on several factors including:
Legal Accessibility - Never enter a location without previous permission. Never take pictures or video without permission.
Logistically Viable - The location should be close enough to bring your equipment and supplies as you might spend hours in a given location conducting research.
Proximity - There are many possible locations within reach of your domicile without having to travel 3000 miles.
Paranormally Significant - The location should be a place where there has been previous sightings or paranormal activity.