Another deck thread... but different because it's ground level between 4 walls with hot tub

[champy]

I'm sure this has been posted but after searching through all the archives i'm still a little unsure.

I'm building a ground level deck 3x6m in a yard surrounded by 4 brick walls, the ground is currently just mud and clay soil under that. I'm just a little unsure of the footings, mainly because of the walls and the weight of the hot tub that will be going on it.

The two options i'm considering are:

Just rest it on the ground but I figured this would be difficult to level and rot a lot quicker.

Or joists spanning the 3m length, have ledger board on each side with a central support for all joists consisting of a wooden post resting on either a poured concrete footing, or breeze block.

I'd really appreciate your opinions on either option.

 

[Tigercubrider]

There are plastic screw type jacks. Could you place paving slabs then jacks to support the rails?
Adjust to get the fall

Any moisture should be below the wood