What Should You Do When You See a Shark?

The chance of a shark incident is extremely low, but understanding how to react can maximize safety during an unexpected encounter. Most sharks are naturally inclined to avoid human contact, and the majority of interactions are driven by curiosity or mistaken identity, not predation. Preparing a sequential response plan for various stages of an encounter provides a clear, measured approach to a potentially frightening situation. This guidance focuses on actions to take from the moment a distant shark is sighted through to an immediate defense scenario.

Immediate Action When a Shark is Distant

Upon sighting a shark, the first step is to remain calm. Panicked, erratic movements, such as splashing or flailing, mimic injured prey and may attract the shark. Instead, maintain a steady, non-threatening posture while immediately assessing the animal’s direction of travel.

Avoid turning your back to the shark as you begin your retreat, keeping it in sight. Start moving toward the nearest safety point, whether it is the shore, a sandbar, or a boat. This movement should be slow and deliberate, using smooth strokes to minimize water disturbance.

If you are in a group, signal quietly to others to stay together, as a larger collective presence can be more intimidating to a curious shark. The goal is a quiet, continuous withdrawal without provoking an investigation, communicating that you are not a distressed animal.

De-escalating a Close Investigation

If the shark begins to circle or approach you directly, the situation moves from passive withdrawal to active de-escalation. The primary strategy involves maintaining continuous visual contact and facing the shark at all times. Sharks often prefer to approach from behind or below, and constantly pivoting to face it signals awareness and a readiness to defend yourself.

Try to increase your vertical profile in the water to appear larger and less like typical prey. If you are on a surfboard, paddleboard, or kayak, use the craft as a physical barrier between yourself and the animal. For divers or swimmers, any available object, such as a camera, fin, or speargun, should be positioned as a deterrent shield.

If you are with other people, move into a back-to-back formation to reduce the shark’s angles of approach. If possible, slowly back up against a solid structure like a reef, piling, or rock outcropping to fully eliminate a blind spot. These actions communicate that you are a formidable and aware presence, often prompting the shark to disengage from its investigation.

Strategies for Active Defense

If the shark makes physical contact, bumps you, or an attack is unavoidable, the response must immediately shift to aggressive, forceful defense. The common theory that a shark will stop if it realizes you are not its intended prey is only partially true; the immediate goal is to break the attack sequence by inflicting pain or shock. Do not play dead, as this behavior encourages the shark’s predatory instinct.

Focus your strikes on the shark’s most sensitive areas: the eyes, the gills, and the snout. The snout is particularly sensitive to blunt force. A hard, repeated jab to the snout can often cause the shark to veer away, creating a momentary window for escape.

If the shark bites, use any available limb or object to repeatedly strike the eyes or forcefully claw at the gill slits, which are delicate respiratory tissues. The striking must be aggressive and relentless, aiming to cause enough discomfort to make the shark release its grip and retreat. This immediate, focused counter-attack is your best chance to survive a physical encounter.

Exiting the Water and Reporting

Once the threat has passed, your focus must be on exiting the water immediately. Move toward the nearest point of safety—shore or boat—as quickly as possible while remaining aware of the possibility of a renewed approach. Do not linger to assess the situation or wait for confirmation that the shark is gone.

If injured, apply pressure to the wound to control bleeding before leaving the water. Bleeding must be minimized, as blood in the water can potentially re-attract the animal. Seek medical attention immediately, even for minor injuries.

After reaching safety, report the sighting or incident to local authorities, such as lifeguards or park rangers. Provide specific details, including the time, exact location, the estimated size and species of the shark, and its behavior. This information is processed to issue warnings, close beaches, and ensure the safety of other ocean users.