I used to have a pit toilet at my cabin in the bush near Drake NSW, that my great g.father built but I changed over to a compost toilet 5 years ago, very clean and no smell.
There is a problem with compost toilets in a festival or high use situation in that to much urine will kill the good enzymes & bacteria that do the hard work.
An older member of my Mens Shed was a teacher and also a Principal. Mostly bush schools in the late 50's and early 60's.
He told me of the sweetest smelling Bush School Dunny he could remember.
It was in the Pilbara (somewhere) and he never thought why it was such a pleasant place to do your business, compared to most of the long drop dunnies.
Turns out the Dunny Block was built over an old Mineshaft.
We have a long drop on the "murder hole" at golf (unsolved murder 1970's).
I drink heaps of water halfway thru golf to assist muscle repair in the old tired legs.
Nine hole course so I get 2 visits.
Got plenty of mileage out of the dunny on our big fundraising day recently.
Someone had carpeted the bare dirt much to my amusement.
Have attracted plenty of mirth on the added comfort since.
It is perched high above the junction of two creeks and is a frog haven.
In summer I am super cautious when I go in or near it, serpents abound.