What’s the best part of Kakadu national park?

Hello, I’m a 16 years old boy from Italy and I’ll come to Australia for a travel in June/July 2009, and I will naturally pass from Kakadu nat park. I think it must be wonderful. I have read that Kakadu is huge, for this reason, what’s the most beautiful part of the National Park?
What’s the part of the park where I can go by boat in the river with crocodiles, see wallabies and admire billabongs?

Thnx and sorry for my bad english!

bb

I believe the best part is the billabongs, as thats what Kakadu is most famous for!! At Yellow river you can do a cruise and see crocodiles, billabongs and birdlife. The accommodation at Cooinda is much better than Jabiru. Jabiru is really not a nice place to stay. Do a four wheel drive tour to Jim Jim falls and Twin falls, or a scenic flight over the falls and Arnhem land.
On the way to/from Darwin you can also do a crocodile cruise on the Adelaide river. They hand feed the crocodiles that leap almost entirely out of the water to get the food. Amazing!!