Sinkhole appears after former crypt collapses at mass grave site 80,000 bodies are believed to lie beneath the park Updated The video will auto-play soon8Cancel Play now A sinkhole has appeared above a former burial site after an old crypt collapsed. Video taken in Grant Gardens, previously Liverpool Necropolis and now a public park on Everton Road, shows the formation of the hole. The sinkhole is said to have formed over the site of a former crypt that was not filled in correctly. Footage shows a substantial hole which has exposed the underground area. Grant Gardens was opened in 1914, sitting above a former cemetery which is believed to hold up to 80,000 bodies.