On your last day in Byron Bay, embark on a whale watching tour (during the whale migration season, typically from May to November). Witness the majestic humpback whales as they pass by the coast, breaching and playing in the ocean. It's an unforgettable experience that will leave you in awe of these incredible creatures. After the tour, take some time to say goodbye to Byron Bay, perhaps with a final swim or walk along the beach, before heading back to the airport or continuing your journey.