Cerulean Cape who lives in a pineapple under the sea?

Just as she'd suspected, Breccan had other plans, though he said he might meet up with them in the future. While Tristan handled the yearling's question, Bat's attention was caught by movement out on the water. She squinted. Was that a pod of whales? She didn't even hear Tristan's reply as her heart leaped.

"Guys, look! I think those are whales or whatever?!" She only knew about whales from her mother (may she rest in peace); she'd once asked about the meaning of her given name. What Bat didn't realize was it was actually a pod of bottle nose dolphins. "Whoa!" she practically yelped when one of the gleaming, streamlined mammals arced up out of the water, only to vanish an instant later.