Printing it is really simple looks problematic, but not at all.
Almost no infill is required.
Avoid perimeter for cleaner prints even with crappy filament. 
lightening infill is a good choice to save few hours of printing time. 

Made it with love, this island guested me for a while and still i feel i'm missing home!

Huge Vulcanic island, really loved by geologyst and antropolgyst