Instead of going to Monkey Mia, I stayed at Dunham. It's an area with not many accommodations, but the price is reasonab, it's right in front of the ocean, there's a gas station next door, and the house is quite spacious. (Living room, bedroom, bathroom, toilet are separated, and the kitchen has everything you need)
I was surprised that the check-in time was much shorter than I expected, but it was convenient to check in without contact, so there was no problem.
The facilities were old, but the atmosphere was comfortable.