While many people go to Orlando without a car there is not doubt it is easer WITH a car.
However it is not impossible without a car and there are shuttle buses. Try to get a hotel in the main International Drive hotel area and there will loads of shuttle buses.
However note that the Disney complex is huge, as large as Manchester, and each of the Disney theme parks are a long way from each other (you cant just stroll from one Disney theme park to the other).
The Disney parks are also a fair distance from the main International Drive hotles area as well.
I believe if you stay in a Disney hotel there are free buses to get you from the
Disney hotels to all the Disney Parks, but of course Disney hotels cost more.
There are parks near the international drive area, Universal's two parks (Universal Studios and Islands of Adventure) are quite close, as is Wet and Wild the water park. But most other parks are some distance away.
You can buy guide books to the area, and it is well worth spending the £10 or so for a book or two as it gives a wealth of information. Here is the Brits Guide to Orlando for about £11. The money you spend on this book will easily repay itself many times over.
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