Well I found some where to run my Tiger 1 and not that far from my house
. theres a few garages there the ground is packed earth small loose stones and some pools of water, I went over there with my Grandson I did not know what depth the tank would go through untill my Grandson went through one 
it was over the wheels and it still kept going great fun , the only down side was you only had about 1/2 hour of it 
.Gerwyn
.