Base yourself in Mooloolaba for an easy, boat-diving hub on Queensland's Sunshine Coast: minutes to The Wharf, quick runs to local reefs, and one of Australia's best artificial reefs, the Ex-HMAS Brisbane. Expect warm-water subtropical diving with macro-rich reefs in the 13 m to 20 m range, plus advanced offshore missions to Barwon Banks when conditions line up. Snorkelers get the headline experience at Mudjimba (Old Woman) Island with turtles and coral ledges, and confident swimmers can pick calm-day headland snorkels around Point Cartwright, Kings Beach, and Noosa. On land, you can stack hinterland hikes in the Glass House Mountains, markets at Eumundi, and wildlife at Australia Zoo, then be back for sunset on the Esplanade. Winter brings cooler water and peak whale season; summer is warmer with more rain and a higher chance of marine stingers.