First cruise please help.

I am taking my kids on our first cruise. We are going to Celebration Key and Nassau. I am looking at all of the on shore “excursions” and most of course are overpriced. -1- do you have to pay for beach access or only the cabanas, or daybeds. If I paid all this money to go to the Bahamas, and I have to pay more to walk on the beach and let my kids play in the ocean. That will be discouraging. -2-Is food and drink included? I see the specialty dining, and know that cost more. But is there not buffet style food accessible 24/7? That is one thing I always heard about cruises. -3- For anyone who has been. What is the most cost effective way for a family of 4 to enjoy the islands. We aren’t worried about the parasailing, and dolphins, the kids just want to go to the beach and go to the pools.

Thank you all for you time that you take to help a single dad out. Just trying to have fun with the kiddos. 16,14,12.