Australian actress Brooke Satchwell is engaged to be married after her longtime boyfriend proposed during a vacation in Cambodia.

The former Neighbours star said yes when her partner of four years, film editor David Gross, popped the question while they were on holiday and Satchwell has revealed the country was where the couple initially fell for each other.

She tells Australian newspaper The Herald Sun, "It's actually where we fell in love. It was such a surprise. I later found out he had been planning it for six months... He did very well (with the ring)."

Satchwell, who previously dated troubled Australian actor Matthew Newton, survived the 2008 terrorist attacks in Mumbai, India with Gross when gunmen raided the hotel where they were staying.