I am making terrain but the terrain goes low enough that player dies

[phenogarbitol (Offical Me)]

so i was designing terrain for my game, but it appears the games death zone has dipped into the map so when i walk into the terrain canals im making it goes down to the death zone roblox has so i was wondering if there is a way to set roblox death zone so the player doesnt die when it goes down there or is there a way to move terrain upwards cause i tried the move terrain tool but it isnt barely big enough to move my map

[nonamehd24]

You can set FallenPartsDestroyHeight in workspace to be -50000.