Out of Your Depth

"You're gonna need a bigger boat..."

- In-game description

Out of Your Depth is an achievement/trophy in Grand Theft Auto V.

Acquisition
This achievement/trophy is unlocked after being killed by a shark.

This can be acquired by driving a boat far out into the ocean, then jumping into the water and waiting for the shark to spawn. A guaranteed way to make the shark spawn is by driving out until the map boundary is reached; the vehicle will be disabled and a shark will spawn to kill the player.