News Facelift for sinkhole 30/07/2023 FacebookTwitterEmail NEW LIFE: City of Mount Gambier staff are working to regenerate the grass and garden beds in the Umpherston Sinkhole/ Bulumbul. Picture: Sophie Conlon Purchase this photo from Pic Store: 350147 Sophie Conlon UMPHERSTON Sinkhole/ Balumbul has been undergoing rejuvenative works to ensure its longevity as an iconic Mount Gambier/ Berrin attraction. During […] Subscribe or Login to see the rest of the content. Username Password Remember Me Forgot Password