Good film: surfers take a boat to isolated island, and one is a killer

Just saw Adam Blaiklock's only feature length film True, not original: Dead Calm and many other boat conflict films are out there, but this was well done. I thought the acting was good and Ben Oxenbould was a great villain! If you've seen any of these boat films it's very predictable, but creates a level of tension that could potentially help you suspend your disbelief.