What did you think of the turtle farm? We read reviews on Trip Advisor and there are a lot of bad reviews about the treatment of their animals.
This was my TripAdvisor review on what is now called the Turtle Centre: "There are 2 price points for entry. One, the cheaper one, allows you into the park to see the turtles. There are several holding areas with different sizes of turtles and iguanas. The higher price gets you into the "water park" area which has a swimming pool with a big slide, a shark feeding area (for the staff to feed them), Turtle Lagoon, which is a snorkeling area, a nature trail, and a beach area with lounge chairs. The Schooner Restaurant is on the grounds and has pretty good food.
Life vests are provided for snorkeling. The snorkeling is as close to being in the ocean with many varieties of fish and sea turtles as you can be without being in the ocean. Having paid for snorkeling trips on many different islands where you may see a few fish, the turtle lagoon guarantees a great sightseeing adventure of sea life."
The questions for you or anyone traveling to GC is do you want to spend time at the biggest attraction on GC to see what it really is and do you want to just spend the time to see turtles or make more of a day of it and pay extra for the pool and snorkeling area? In 1998, my first time to GC, there were only a handful of tanks to view turtles and a small restaurant.
The "bad" reviews mostly stem from the debate that some of the recent SB posters referred to after you posed the question, "What did you think of the turtle farm?" and not about the physical attraction itself. My take is different. I don't think any animals should be harassed but am not against touching them. I don't really want to mess around with a snapping turtle though. Some of the turtles get held a lot in the holding tanks, but whose to say if they like it or not. Other types of sea turtles are endangered and not allowed to be touched. As far as turtle meat, it is legal in GC, but I wouldn't eat it (my wife and I got a sandwich in 1998, both took a nibble, and threw the rest away.) I'm pretty sure it's not on the menus of restaurants we have eaten at more recently. I have to believe the Turtle Centre has done a lot of good for the conservation of the sea turtle overall.
Thought of another activity we did several years ago that was really fun if you're into jet skis. Through Fat Fish Adventures (not sure they're still in GC) we did a jet ski tour that started in a mangrove, stopped at Stingray City, stopped and snorkeled another area, stopped at a beach bar, and was supposed to stop at starfish beach which we skipped. It was great fun. You're going to have a great time.