First it was shortlisted for the Stella Prize, so it sits among 5 other wonderful women's books, ready to be celebrated on 16 April, when the winner is announced.
Then it became a finalist, not once but twice (Fantasy Novel and YA Novel), in the Aurealis Awards. Mid-May is when we find out whether it makes it right to the top there. (Three of the four stories in Cracklescape also made the running, which is pretty damn fine, too!)
Tomorrow night the annual Indie Awards (Australian Independent Booksellers Awards) dinner is on, and as you can see on the linked page Sea Hearts is up for the award in the Children's Section (which in the absence of a YA Section is for Children's and YA books).