water supply in Gibraltar
... that in a bid to improve the water supply in Gibraltar, much of the east side of the Rock of Gibraltar was covered with giant metal catchments to trap rainwater?
... that in a bid to improve the <b id="mwHA"><a href="./Water_supply_and_sanitation_in_Gibraltar" id="mwHQ" rel="mw:WikiLink" title="Water supply and sanitation in Gibraltar">water supply in Gibraltar</a></b>, much of the east side of the <a href="./Rock_of_Gibraltar" id="mwHg" rel="mw:WikiLink" title="Rock of Gibraltar">Rock of Gibraltar</a> was covered with giant metal catchments <i id="mwHw">(pictured)</i> to trap rainwater?