You can expect to get some bonus if you are planning a trip to Western Australia for a swim with whale sharks. Whale sharks are wild animals and non of us can expect them behave as we wish, i.e. show up at the time tour boat heads to the sea. So you should expect some breaks until spotting planes will find whale shark which won’t mind to interact with people. But you won’t be bored as there are a lot of chances that you’ll be entertainment by group of dolphins.
This group of dolphins I saw during my whale shark tour I took in Exmouth. But I sure you can see them in Coral Bay too, because it is usual thing to see them at the reef. Though I would be prefer more swimming time with whale shark instead of watching dolphins as there are better places to see dolphins in Western Australia. I will write about that place later.