Whoever said bouncy castles were just for kids clearly never encountered The Monster. Clocking in at 270-metres and boasting 30 different obstacles, this thing takes the title of the world's largest inflatable obstacle course. Oh, and it's just casually coming to Melbourne in January 2018, as part of its own three-day 18+ festival of fun.

Taking over the Grand Pavilion at Melbourne Showgrounds across the Australia Day long weekend, The Monster is the bouncy castle experience of your wildest kidult dreams. Punters are invited to run, jump, dance and scramble their way through the course, with sessions running from noon–10pm each day. It'll likely take you somewhere between five and 20 minutes to complete, depending on speed, coordination and how indulgent your festive season was.

What's more, the fun extends beyond the final bounce, with the festival also pulling together a program of DJs, street food vendors and pop-up bars to see you sticking around long into the night.

Melbourne's just the first stop on The Monster's soon-to-launch Aussie tour, with organisers TEG Life Like Touring expected to announce more cities next year.