Well, things got a bit carried away there, I decided to delete all the posts as they had nothing really to do with the topic at all. Very tempted to hand out infractions, but wasn't sure where to start. But if it starts again, I'll dish 'em out.
I will remind everyone that evryone on this site is entitled to an opinion - no matter how wrong it may be - and they are entitled to express that opinion (as long as it doesn't break any rules). Several opposing views have already been argued. And now I want to make a couple of points:
Crocodile Farms are just that - farms. That's how they make their money. Maximising the usage of space is good business sense. And they are regulated by local and State ot Territorial authorities.
If it wasn't for Crocodile Farms, the Saltwater Crocodile would probably be extinct in Australia.
Animals in captivity that have all their basic needs met usually will thrive in an environment much smaller than "the wild". This is particularly true of reptiles.
20m x 20m for a couple of tigers is a decent size enclosure. Yes, many zoos keep them in larger enclosures, but I've seen many zoos keep them in smaller cages.
Concrete is an excellent choice of building material substrate from an hygenic point of view - it is quickly and easily hosed down and cleaned, and is easily disinfected. In fact, I would suggest that concrete sitting in the Darwin sun would get so hot that most bacteria would be unable to survive on the surface.
Sea Turtles - like Hawksbills - only come a shore to lay eggs. The ones in the concrete pit (that I assume was filled with water) wouldn't have come out onto the little concrete "land". In fact if the land was grass and sand and the size of a football field, the Hawksbill would probably still not have crawled onto it unless she was ready to lay.
Hix
Note: I have never been to Crocodylus Park.