Shocking footage shows a group of ten people sliding and skating on a frozen lake - just days after four boys died after falling into through ice.<br /><br />The terrifying video shows a group of adults and children taking selfies, kicking a football and skating on the frozen lake at Sefton Park in Liverpool.<br /><br />Onlookers tried to warn the group, but were reportedly hit with abuse from the skaters saying that they are 'old enough to make our own decisions.'<br /><br />The video was captured on December 14 - just three days after four boys tragically passed away after they fell into an icy lake.