Editing HQ rules from M&M2e (section)

===ISOLATED===
Headquarters with this feature are situated somewhere out of the way like the
Antarctic, the bottom of the ocean, on top of a lonely mountain peak, even
in orbit or on the Moon. The base’s owner doesn’t have to worry about things
like door-to-door salesmen or other unwanted visitors but the headquarters
is also far from civilization (which can be limiting for heroes unable to travel
fast). The headquarters is assumed to provide all the necessary life-support
for its location, but it doesn’t provide characters with the means to get to the
base or travel back. They need the appropriate powers or a vehicle.