Small-group whale-watch cruises out of Brunswick Heads Boat Harbour, working the humpback migration through the Cape Byron Marine Park from mid-June to October. The boat is the pitch here: a hard-hulled vessel with a cabin and toilet rather than an open inflatable, capped at ten to twelve passengers and running a dedicated whale spotter. It bills itself as the longest-running whale-watching tour in the Byron and Brunswick area, with a claimed 100 percent sighting record since 2011.