Can you bring dogs on to the park/on the raft?

Of course you can. Dogs are better than people!

I have a Maltese, the one I have now is my 3rd one. All of my dogs have gone on the raft & enjoyed it even when it was busy, so it depends on your dog. But dogs are allowed on the raft.

Please be considerate of others that may either have pet allergies or fear of dogs and leave the dogs at home

Yes

Not sure on the raft. The floating deck normally is so crowded bringing a dog is not a good idea as they might get stressed.