Stranded

Kiara Michaels has a school trip and she's excited about it. Her plans are changed when famous actor Dallas Jones joins their school. On the trip her friends and her go to a boat party. Unexpectedly Kiara falls off the boat and Dallas jumps off to save her. They get into a boat and then suddenly drift away, they wake up with no idea where they are with an island a few kms in front of them.

This is strongly based off Blue Lagoon the awakening.