Quadra Island is located within the tidal corridors of the Discovery Passage, offering a diverse underwater environment of reefs, walls, kelp forests, and artificial structures. Dives range from 10 to 40 metres, with visibility between 4 and 15 metres. The site is defined by strong currents, necessitating careful planning around slack water. Marine life includes common sightings of King Crabs, Leather Stars, Sunflower Stars, and Ochre Sea Stars, alongside less frequent encounters with Scorpionfish, various nudibranchs, and jellyfish. Given the cold water temperatures of 7 to 12 degrees Celsius, a drysuit is essential. Boat access is required, and divers must use a surface marker buoy due to active boat traffic.

Argonaut Wharf in Campbell River is an artificial reef site defined by the pilings of a former industrial wharf. These structures are heavily encrusted with marine growth, creating a vertical environment that serves as a playground for snorkelers. The site is accessed from the shore and is best suited for intermediate snorkelers. Water temperatures at this location vary throughout the year, ranging from 7C in February to 18C in August. As a marine environment, the site offers a unique opportunity to observe the colonisation of man-made structures in the coastal waters of Vancouver Island.

April Point in Campbell River offers a varied underwater landscape featuring reefs, walls, and drift sections. Divers can explore depths starting from the surface down to 25 metres, with visibility ranging from 10 to 30 metres. Due to strong currents, this site is suited for intermediate divers, and all dives require boat access. Water temperatures fluctuate between 7 and 18 degrees Celsius throughout the year, necessitating a drysuit or thick wetsuit. Divers must manage currents by timing their entry around slack water. Hazards include cold water, surge, and entanglement. Local facilities provide air fills, equipment rental, and boat charters to support year-round diving.

Campbell River offers a unique freshwater drift snorkel experience. Participants enter from the shore to float downriver, a seasonal activity that typically occurs from August to October. The site is suited for intermediate snorkelers due to the strong currents encountered in the river. Depths are shallow, reaching up to 3 metres. Water temperatures fluctuate throughout the year, ranging from 7C in February to 18C in August. Divers and snorkelers should be prepared for cold water conditions and variable visibility. Guided tours are available through local facilities to assist with navigating the river environment.

Steep Island is a boat-access reef dive located 1000 metres off the coast of Campbell River, Canada. The site features a rocky reef structure at depths ranging from 5 to 15 metres, with an average depth of 10 metres. Visibility typically spans 5 to 10 metres. Divers should be prepared for moderate currents that can strengthen unexpectedly, requiring careful position management relative to the reef. Due to the presence of sharp rocks, good buoyancy control is necessary to avoid contact. Water temperatures fluctuate between 7 and 18 degrees Celsius throughout the year, making a well-fitted wetsuit or drysuit essential for this intermediate-level dive.

Copper Cliffs is a wall and drift dive located near Campbell River, British Columbia. The site features a reef structure with depths ranging from 15 to 30 metres, averaging 18 metres. Divers encounter moderate currents, requiring intermediate skill levels and precise buoyancy control. Visibility is typically limited to 4 to 6 metres. Water temperatures are cold, fluctuating between 7C and 18C throughout the year, making drysuits and gloves essential equipment. Access is by boat only, and divers must time their entry to coincide with slack water to manage the current. Maintain close proximity to your guide throughout the dive due to the potential for strong water movement.

The HMCS Columbia is a decommissioned naval vessel resting as an artificial reef off the coast of Campbell River. The wreck sits at a maximum depth of 43 metres, with the upper structure accessible from 12 metres. Visibility typically ranges between 10 and 30 metres. This site is suitable for intermediate divers, though the wreck interior presents significant entanglement and overhead environment hazards. Penetration is restricted to those with appropriate training and experience. Boat access is required to reach the site, where currents remain mild. Water temperatures fluctuate between 7 and 18 degrees Celsius, making a drysuit or thick wetsuit advisable for year-round diving. Night diving is also an option at this location.

θatɛq, located near Campbell River, offers shallow snorkeling over a mix of sandbars and rocky outcroppings. This site is suitable for beginners, with depths ranging from 1 to 10 metres and an average depth of 5 metres. Access is via a shore entry, and snorkelers can expect mild currents. Visibility at the site typically fluctuates between 5 and 15 metres. Water temperatures vary significantly throughout the year, ranging from 7C to 18C, with the warmest conditions occurring in July and August. Due to the location, snorkelers should remain aware of boat traffic and potential surf conditions. Facilities including a cafe, equipment rental, and guided tours are available nearby.