Had an 18 holer in my backyard with sand greens-super fast and true. Swept to hardpack daily.
7 greens -multiple angles.
Had water hazards on 6 holes and bunkers in play on 8 holes.
Previously the backyard had formal gardnes(gone fallow) complete with multiple irrigation spigots, perfect to feed the lazy river and created water hazards.
Large serving Campbell's soup cans for cups, Green grass welcome mats adhered with railroad spikes.
Used to have weekly events, complete with mini tour like purses in middle school.
A buddy of mine would steal beer from his dad and sell it during the event-he was always the leading money winner.
I was eventually suspended for promoting "gambling" events in school, but that just became more practice and earlier start times.
Those who didn't participate paid an entrance fee for the series of underground tunnels(covered with planks, the soil- and revegetated) or hung out in the 5 story home made treehouse.
There wasn't a lot of parental supervision in my family.
We broke at least one window a week between golf and and full scale fast pitch baseball games.(I learned how to replace and was on a first name basis at hardware store)
The only parental intervention I can recall was when my next door neighbor, donned in a football helmet, lost his nerve going over our picnic table without front legs set up as a ramp(it was the era of Evel Knievel) to propel us over the lazy river. He slowed down and just plopped over the edge-headfirst.
Turns out mom WAS watching...
At Sleepy Hollow,we built an 18 hole pitch and putt in the grassy church vacant lot next door, where we held parent child events with 80-100 competitors .Same thing-water hazards and bunkers, and a walk mower for the greens.
It's now a wonderful short game practice area for the club....Ours was better
-or at least far more creative