It might alarm some people to learn that those born in 1998 are turning 21 this year. You read that right. And you can hardly turn 21 without having the kind of party that would disappoint your parents. This October, Sydney’s BridgeClimb is about to hit the milestone.

Over its 21 years, the Sydney Harbour Bridge adventure experience has seen Prince Harry, Oprah, Hugh Jackman and many other known personalities scale its lofty heights. It has also been the site of many a proposal, marriage, celebration and fear-ridding challenge.

To mark the special occasion, BridgeClimb will be throwing back to its 1998 ticket prices (just $98) on 1 October. All month, climbs will feature a 1998 playlist featuring the likes of Outkast, Jay Z, Madonna and Massive Attack.

There’ll also be chocolate treats under the arches, and chances to meet the first climbers who scaled the summit in 1998.