Does your diving bucket list include getting up close with large marine creatures? Many divers dream of manta rays in Indonesia, humpback whales in Moorea, or tiger sharks in the Bahamas. But did you know that you don’t need to travel across the world for an encounter with one of the ocean’s most charismatic and playful species? Right here, off the coast of British Columbia, we have a front-row seat to one of the most exciting marine interactions in the Pacific Northwest—diving among sea lions.
Meet the California and Stellar Sea Lions of Hornby Island
Each winter, Hornby Island, and more specifically Norris Rock, becomes home to a colony of juvenile California sea lions. These social, curious, and energetic animals are at an adventurous stage in their lives, much like teenagers eager to explore. They are known for zipping effortlessly through the water, performing acrobatic flips, and occasionally checking out divers with playful curiosity.
While divers never seek out the sea lions, these marine mammals are naturally inquisitive and have been known to make surprise visits, sometimes gliding inches away or gently nibbling on a diver’s fins or neoprene—a completely harmless but unforgettable experience.
Why Are Our Sea Lions So Curious?
Sea lions, especially juveniles, display a high level of intelligence and social behavior. Their natural curiosity makes them more likely to investigate new objects in their environment, including divers. Unlike some other marine mammals, they thrive in social interactions, both within their groups and with the occasional visitor in their territory. Their streamlined bodies and powerful flippers allow them to move gracefully through the water, making every encounter feel like an underwater ballet.
Though they may seem a little clumsy on land, sea lions are incredibly agile underwater, using their front flippers to propel themselves through the water with incredible speed and precision.

Hornby Island Diving: Truly A Dive for the Bucket List
While we can’t promise interactions with sea lions—after all, nature runs on its own schedule—the cold, nutrient-rich waters around Hornby Island provide some of the most exciting diving opportunities in British Columbia.
Along with stunning kelp forests, vibrant reefs, and colorful invertebrate life, the region is home to lingcod, rockfish, and giant pacific octopuses. Divers can also admire the dramatic underwater topography, with rocky walls and ledges teeming with marine life.
This cold-water destination is a must-do for divers looking to experience British Columbia’s thriving underwater ecosystem.

Hornby Island Dive Trips
For those looking to explore the beauty of Hornby Island, we run this trip each year typically February/March. Here’s what to expect:
Trip Itinerary
- Early morning departure from Vancouver
- Scenic ferry ride and drive to Hornby Island
- 2 guided boat dives in the nutrient-rich waters of Norris Rock
- Potential to observe sea lions in their natural habitat
- Post-dive hot drinks and snacks to warm up
- Return to Vancouver in the evening
As with all wildlife experiences, we respect the natural behaviors and habitats of sea lions and follow all DFO (Department of Fisheries and Oceans) regulations. This means we never approach or disturb them—but their natural curiosity often brings them close enough to create an incredible and spontaneous experience.

Hornby Island: An Adventure You Won’t Forget
Whether you’re a seasoned cold-water diver or new to the Pacific Northwest, Hornby Island is a destination that belongs on your diving list. From the thriving marine ecosystem to the occasional visit from playful sea lions, this trip offers the perfect blend of adventure, education, and breathtaking underwater scenery.
Want to join? Spots are limited, so secure your place today! Learn more about the trip and sign up here.
Come dive with us and discover the magic of British Columbia’s waters!
