When Sienna goes to Indonesia as part of her father's relief team (helping tsunami orphans suffering from PTSD), she doesn't know what to expect. She's resistant to going, but there's not much to keep her at home: her mother died three years ago in a plane crash over the ocean, and since then Sienna's stopped surfing, flying, or doing much of anything. The one bright spot in her life is the hint of tension with her guy friend Spider, a surfer who still calls her by her old nickname "Sea" (painful irony there, as she's now afraid of the ocean). But once she gets to Indonesia she meets Deni, a 17-year-old orphan who takes care of the other children from his region and has problems with the orphanage leader's authority. The two of them grow closer together as they help each other emotionally overcome their past losses.
With this wonderfully unique premise, Sea engages with the trauma of a fairly recent world tragedy and spins a compelling YA romance from it. The Indonesian culture is portrayed in respectful detail, the love story rings true, short chapters keep the pace clicking along nicely, Sienna is a sweetheart and Deni...well, it's easy to see why Sienna falls for him.
An observation: though there's plenty of peril in the story (psychological, physical, sanitary), the scariest moment in novel for me was when Sienna rides off into town with Deni on his motorcycle. I was thinking, Girl, you are so lucky you're in a YA romance, because under any other circumstances, driving off with a cute boy you recently met in a country where you don't speak the language, without anyone knowing who you're with, where you're going, or when you're coming back is a baaaad idea. The trip with Deni was fantastic and really advanced the story and the emotional arcs, but my big sister alarms were going crazy anyway.
Lastly, when reading Sea, you can look forward to a fantastic and very unexpected ending. Usually, when a book takes an unexpected turn toward the end, I'm upset by the imbalance, and ready throw the book against the wall, but in Sea, the change is totally satisfying. I highly recommend it.