Naomi Watts Shares Sweet Birthday Message for Son Sasha: 'So Lucky to be His Mummy'

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Naomi Watts is proud of her boy!

The Twin Peaks star took to Instagram on Tuesday to praise her son, Sasha, on his 10th birthday, sharing a pic of him standing on a fallen tree in Africa.

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"Happy Birthday ? to this beautiful boy. Sasha is 10 today. Here he is in Africa, living his dream. His love and understanding of nature is everything," the 48-year-old actress wrote. "So lucky to be his mummy ❤️ such a ? #inhiselement #manofthewild."

Happy birthday, Sasha!

WATCH: Naomi Watts Says She's on 'Great Terms' With Liev Schreiber After Split: 'There's Good Days and Bad Days'

It was a fun weekend for Sasha, and his 8-year-old brother, Kai, as the siblings and their parents, Watts and ex-husband Liev Schreiber, spent time together at Comic-Con with some fun family cosplay!

Watch the video below for more.

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