Local Diving Conditions

Underwater Terrain

Underwater terrain varies from shallow exposed sandstone reefs to steep walls dropping off to depths of hundreds of meters.White sand is found at two beautiful swimming beaches, including famous Tribune Bay.

Layered sedimentary rock occurs to the south; this generally makes for the best diving, as it provides lots of stable surface for colourful marine life to attach to.

Several small islets around Hornby provide protection from winds and current, and add challenge and interest to diving conditions.

Water Temperature

The water temperature at the surface ranges from 5 degrees Celsius (41 degrees Fahrenheit) in winter to over 20 C (68 F) in summer. At 20 m (60') it remains fairly constant at 8 - 12 C (46 - 54 F).

Drysuits are considered the standard, but a two-piece 7mm wetsuit with a hood is also adequate.

Visibility

Underwater visibility varies considerably season to season.

The best visibility usually occurs from September through to February when there is less plankton due to reduced sunlight. Winter visibility generally ranges from 12 - 30m (40 - 100').

In summer, the plankton stays in the warmer surface water. Below 10m (30') the visibility is usually 10 - 15m (30 - 50').

Tides & Currents

Tides in the Strait of Georgia are a result of a tidal wave that travels northwest/southeast along the western coast of North America. Difference between ebb and flood tides can be up to 5m (17').

Because the Strait of Georgia is fairly wide and deep around Hornby, tides are not strong enough to affect the planning of our dives to any great extent. Locally strong currents provide excellent drift diving.

Diving Around Hornby Island
Sixgill Sharks
Sea Lions
Local Diving Conditions
Five Favourite Dive Sites
Diving Experience Required