Exploring the Mysterious World of the Bluntnose Sixgill Shark
Discover why Des Moines, Washington is the best place in the world to encounter the elusive Bluntnose Sixgill Shark (Hexanchus griseus)—a rare and unforgettable experience beneath Puget Sound.
Why Is Des Moines the Best Place to See Them?
Redondo Beach in Des Moines, WA offers the unique combination of depth and habitat that draws Sixgills closer to shore than almost anywhere else in the world. Our community of divers has documented consistent seasonal sightings, making this area a global hotspot for shark lovers and researchers alike.
What Makes the Sixgill Shark So Special?
The Bluntnose Sixgill Shark is a deep-sea predator that typically stays far from human eyes—except in Des Moines. These ancient sharks can grow up to 18 feet long and are most commonly seen between late spring and early fall by local SCUBA divers. With six gill slits (not five like most sharks) and a prehistoric lineage, this species is a living fossil.
Protecting Our Predators: Why Your Choices Matter
- Healthy Puget Sound
- A cleaner Sound means better conditions for all marine life, including Sixgills.
- No-Touch Encounters
- We promote responsible observation—no feeding, chasing, or harassing.
- Sharks Need You
- Learn how your lifestyle choices support shark conservation.
Be Part of the Sixgill Story
Share your encounters to help us build the most complete record of Sixgill activity in the world.
