the ballot thing really depends when you want to visit, it's only for peak times, other times you can rock up and by a day pass at entry.

I've updated this to motor_vehicle=yes + fee:motor_vehicle=yes. To say that anyone can drive here if you pay a fee. In particular it's open to the public which I associate with access=yes. access=private is a very strict access value usually for staff/maintenance/the owner only. I think access=permit is a bit different as you really can just buy a entry pass at the gate (when it's not peak times) and access=permit implies I need to organise a permit before I travel.

What do you think?

https://www.holtestate.com.au/bhp1