Hiya Seema
I've taken part in the "Marine Mammal Keeper Experiance" at seaworld and the "Trainer For A Day" at Discovery Cove. Both where amazing and experiances they will not be forgotton. As you know the MMKE is limited to 3 people a day so its alot more personal and you feel part of the team whereas Discovery Cove is 1000 or 18 for TFA. I prefered Discovery Cove due to the fact of the environment. To put it in simple context, I personally think there worth the money, if you have any specific questions, please ask!