Vacation photo's but also photo's of killerwhales in action

Tell us more! Are you a beginner or expert? What types of photos do you like to take? What features in a camera are important to you?

I'm not a beginner but I'm not an expert either. I used to have a panasonic Lumix but I'm not sure what to take now. I love zoom but that has it's disadvantages too. The camera needs to make good quality pictures even on automatic, needs to make good pictures in low light without having to adjust a lot on the camera. I also want to make good pictures during killerwhale shows. So the burst function has to be fast too. I don't care about size, weight n all that but I don't know what camera to take.

I will use this on my Florida vacation