The Oasis is the historic core of Al Ain, and one of the oldest continuously inhabited places on the Arabian Peninsula.
It is also the flagship attraction, and to some extent the epitomy of Al Ain. It is indeed fascinating, simply by being a lush, green spot in the middle of a desert. If you visit Al Ain, a trip here is a no-brainer.
That being said, a quick visit is enough. Walking among the date palm trees is obviously nice and pleasant, it is a pretty place, and it is what defines Al Ain, but there isn't much to do there. Oh, make sure to have one of the hand-made ice cream mixes at the cafe there. Those ones are actually nice!
The Al Ain Palace Museum and the Al Ain National Museum are also located within the oasis. The National Museum was closed when we were there, though.
The Palace Museum, formerly the palace of Sheikh Zayed (the founding father of the United Arab Emirates) can be done in less than an hour. It is a cute little palace, definitely nothing extravagant. The again, it was built at a time when the place we call UAE today were some dirt poor desert kingdoms. That makes it an important part of the history of the Emirates, and a great example of how far the country has come in just a cople of decades.More