The Madiera is a freshwater shipwreck located off the North Shore of Lake Superior. This site offers shore access to a wreck lying at depths between 6 and 33 metres, with an average depth of 20 metres. Divers should be prepared for cold water temperatures ranging from 1 to 12 degrees Celsius, necessitating the use of drysuits or thick wetsuits. Visibility is highly variable, fluctuating between 3 and 24 metres, and the structure presents potential entanglement hazards. Due to the depth and cold conditions, this site is best suited for experienced divers. Guided tours are available and recommended for initial visits to assist with navigation.

Pebble Beach on the North Shore of Lake Superior offers a shallow freshwater snorkeling experience over a unique lake floor. The underwater terrain is composed of smooth, colourful basalt and rhyolite stones, creating a mosaic effect across the bottom. Depths at this site range from 1 to 6 metres, with an average of 3 metres, making it suitable for beginners when conditions are calm. Divers and snorkellers should be prepared for cold water temperatures, which fluctuate between 1 and 17 degrees Celsius throughout the year. Access is via a shore entry, and the site features parking, toilets, showers, and changing rooms for visitor convenience.

Sugarloaf Cove on the North Shore of Lake Superior features a protected nature preserve with a rare tombolo and a cobblestone beach. The site is defined by 1.1 billion-year-old lava flows that form a reef structure within the cove. This relatively shallow area is sheltered from the main lake winds, offering a calmer environment for divers and snorkellers. Entry is via a short walk from the interpretive centre. Water temperatures are cold, ranging from 1°C to 16°C throughout the year, with the warmest conditions typically occurring in late August. Facilities at the site include parking, toilets, and a rinse station.

Devils Island Caves on the North Shore of Lake Superior feature intricate arches and deep chambers carved into red sandstone. This site offers a unique freshwater environment consisting of caves, walls, and reefs. Access is by boat only, as the site is located over 35 kilometres from the shore. Divers and snorkellers should be prepared for challenging conditions, including cold water, strong currents, surge, and potential overhead environments. Visibility varies significantly from 3 to 24 metres, and depths are shallow, averaging 4 metres. Due to the technical nature of the caves and variable conditions, this site is suitable for advanced divers.

Meyers Beach Sea Caves on the North Shore of Lake Superior offer a unique freshwater snorkeling experience within a series of shallow caves. Located 1600 metres from the shore, the site is accessible by both boat and shore entry. Conditions vary, with moderate currents and potential for low visibility. Due to the overhead environment of the caves and the cold water temperatures, which range from 1C to 18C, this site is suited for intermediate snorkelers. Hypothermia is a significant risk in these waters, and snorkelers should remain aware of boat traffic in the area. Parking and toilets are available at the site.