Ziemlich abgefahrene Konstruktion, diese Unterwasser-Beobachtungsstation - ganz im Süden :-)
via boingboing."Since support workers in town cannot make their usual recreational trips out onto the sea ice, the powers-that-be at McMurdo Station installed the OB TUBE within walking distance of town.Anyone can climb down the ladder and watch us divers at work under the ice. The snow was bulldozed off of the sea ice around the observation tube, creating a very light environment; which seems to have attracted an enormous population of larval and juvenile ice fish that form great clouds around the tube."