First off, congratulations! I'm sure it will be a fantastic trip.
Having stayed at CSR many times, be sure to enjoy the beauty of the resort. Especially in the morning (if you are earlybirds!). The resort has a quiet, calm, and gorgeous feel and walking around the lake in the morning is awesome.
Hammocks on the beach around the lake are perfect for honeymooners.
If you are into the lounge-style nightlife (I personally am not), the Rix Lounge located in the main building is good for tapas-style appetizers and specialty drinks.
Great time to be going also, as later in August tends to have less visitors than the middle of the summer, especially towards the end of your stay.