Bindi Irwin has praised her husband Chandler Powell as her “best friend”

And in the caption, Bindi gushed over the “countless adventures” they’ve shared as a couple, including welcoming their daughter Grace Warrior in March this year.

She wrote: “Almost 8 years ago I fell in love with your smile, it’s been over a year since we got married, we’ve shared countless adventures and we continue to build a future together. The greatest blessing was bringing Grace Warrior into this world. I love being on this whirlwind journey with you. My best friend. @chandlerpowell #NationalBestFriendDay (sic)”

Earlier in the day, Bindi's mother Terri Irwin took to Twitter to reveal that she also considered her husband – the late Steve Irwin, who died in

2006 – to be her best friend.

Posting a sweet picture of her and Steve hugging while wearing coordinating outfits, she wrote: "I married mine!

#NationalBestFriendsDay (sic)”

Bindi and Chandler were married in a makeshift ceremony at Australia Zoo in March last year just before the coronavirus lockdown took effect in the country.

And although they had to change their plans because of COVID-19, Bindi previously described the ceremony as “special”.

She said: “It was really crazy. You always plan your wedding with lots of guests and I think it was just us and the animals. Very, very small.

But it was really, really special. We’re just glad to be married and to be husband and wife while taking on this wild 2020 and new 2021.”

The animal activist also previously described Chandler as the "light of her life".

She wrote on social media: "Every day I'm thankful for this extraordinary man I get to call my husband. I love you with all of my heart. You're the light of my life."