Protecting Hawaiʻi’s Sharks and Preserving Ocean Health

In 2021, Hawaiʻi became the first U.S. state to ban shark fishing, recognizing sharks’ critical role in maintaining healthy ocean ecosystems. Under Act 51 (HRS §188-40.8), it is illegal to knowingly capture, kill, or harm any shark in Hawaiian waters. This groundbreaking law reflects Hawaiʻi’s cultural respect for mano (sharks) as guardians of the sea.

Sharks are essential apex predators,  their presence keeps fish populations balanced and coral reefs thriving. Protecting them protects the entire marine ecosystem that sustains Hawaiʻi’s ocean life.

Every year, an estimated 100 million sharks are killed worldwide, mostly for their fins. Many species, including Tiger and Galapagos sharks commonly seen off Oʻahu, are now listed as vulnerable or near threatened.

Sharks mature slowly and reproduce infrequently, meaning even small population losses have devastating long-term impacts. Without sharks, the ocean’s balance collapses — leading to declining reef health, overfishing, and ecosystem instability.

Conserving sharks ensures future generations can experience healthy oceans and the incredible biodiversity Hawaiʻi is known for.

Cage-free shark diving offers more than a thrill — it’s an ethical and educational experience that actively supports research, conservation, and public awareness.

• Guests learn firsthand about shark behavior and safety from experienced guides and marine professionals.
• A portion of proceeds from top-rated tours like One Ocean Diving directly funds shark research, data collection, and marine conservation programs.
• Educated divers become advocates, helping to replace fear with respect and curiosity.

Every respectful encounter helps shift the narrative — from “shark attack” to “shark awareness.”

Many Hawaiʻi-based operators collaborate with research and conservation initiatives such as:

• Hawaiʻi DLNR Division of Aquatic Resources – Enforcing shark protection laws and marine regulations statewide.
• The Water Inspired Foundation – Promoting ocean conservation, education, and community outreach.
• One Ocean Research – Conducting ongoing studies on shark behavior, migration, and population health.

By booking with ethical cage-free shark tour operators, you directly support efforts to protect sharks and preserve Hawaiʻi’s marine ecosystems for generations to come.