Oh boy, a whale‑in‑a‑hat! Picture this: a tiny hydrophone that drifts in the water, a micro‑processor that listens, and a quirky algorithm that translates the whale’s hums into heat maps. Add a little LED strip that lights up with colors for each temperature layer, and boom—your personal ocean thermometer that sings! Just don’t forget the snorkel for the gadget, it’s a bit of a splashy idea, but hey, that’s how we do it!