Watch: Highlights from day four of Prince Harry and Meghan's royal tour

The Duke and Duchess of Sussex have enjoyed a whirlwind four days of royal tour, which kicked off in Australia (with a baby announcement!) on Oct. 16. Since then, Prince Harry and Meghan have been on a non-stop adventure – from sweet moments with their mini admirers to tram rides to sunny beach days.

And day four was, of course, nothing short of perfect. Supporting a cause close to their hearts, the parents-to-be kicked off their shoes for a romp on South Bondi Beach, where they met with mental health awareness group OneWave and took part in a "Fluro Friday" session, where people of all ages are encouraged to share their experiences with mental health issues. They then headed off to Mcarthur Girls High School to see what the In League In Harmony Youth Advocate program is all about, before heading to climb the Sydney Harbour Bridge (which pregnant Meghan sadly sat out of).

Watch our round up of the best moments of day four below...

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