So excited to celebrate your birthday tomorrow and the amazing,

beautiful, inspiring person you are," Bindi captioned a family photo on Instagram Tuesday

Bindi Irwin is honoring mom Terri ahead of her special day!

Mum, I couldn't wait to wish you a HAPPY BIRTHDAY!" Bindi, 23

began her note. "So excited to celebrate your birthday tomorrow and the amazing,

beautiful, inspiring person you are. Thank you for being born.

"I love you more than I could possibly describe and every day I'm grateful for your kind heart and strong soul," she continued.

"Of all the good things in this world, you're the most wonderful."

Meanwhile, Bindi's brother Robert, 18, also shared a celebratory post of his

own to commemorate the occasion. Terri turns 58 on Wednesday, July 20.

Your unwavering strength and leadership inspires us all. Can't wait to party today!"