Post #13 on that thread has photos and basic info of what's included. Here's other info cut and pasted from the GF FAQ:
There are only two cabanas you can reserve and two that are free minus all the goodies the rentals come with.
1. Times are 10 to 2 or 3 to 7
2. You can book 90 days from the first day of arrival
3. Soda, Water, Juice (included)
4. Lifeguards are the Cabana men or women
5. $60 for 1/2 day and $110 for full day!!
There is a TV, Air Conditioner, Satellite Radio, Basket of Fruit. Table with two chairs & two lounge chairs.
You can reserve one 90 days in advance. You have 24 hours to cancel. WDW could cancel your reservation anytime due to inclement weather.
To reserve call (407) WDW-PLAY