Goat Harbor is a boat-access reef and kelp forest site located off the coast of Two Harbors. The site features depths ranging from 10 to 37 metres, with an average depth of 15 metres. Divers encounter mild currents and visibility typically between 5 and 10 metres. The kelp forest provides significant structure throughout the area. Due to the potential for boat traffic, it is essential to deploy a surface marker buoy before ascending. The site is suitable for beginner divers, with a typical dive duration of 45 minutes. Water temperatures range from 14 to 17 degrees Celsius, making a 5mm wetsuit recommended.

Casino Point in Avalon is a shore-accessible dive site featuring a kelp forest and reef environment. Divers typically experience depths averaging 8 metres, with a maximum depth of approximately 8.5 metres. The site offers visibility ranging from 12 to 30 metres and mild currents, making it suitable for beginners. Dives here generally last around 50 minutes. Water temperatures fluctuate between 15C and 20C throughout the year. Facilities available at the location include air fills, equipment rental, and guided tours. Divers should remain aware of boat traffic in the area.

Little Gibraltar is a reef and pinnacle site located off the coast of Two Harbors. The site features depths ranging from 11 to 25 metres, with an average depth of 20 metres. Divers can expect visibility between 10 and 30 metres. The area is subject to moderate currents, which require solid buoyancy control and careful navigation around the pinnacle structure. Access is strictly by boat. Due to the presence of boat traffic, divers should remain vigilant during ascents and are advised to use a surface marker buoy. This site is best suited for intermediate divers capable of managing current and surface awareness.

Italian Gardens is a reef and kelp forest site located 1500 metres off the coast of Avalon. The site features depths ranging from 6 to 30 metres, with an average depth of 15 metres. Visibility typically spans 10 to 25 metres, allowing for views through the kelp canopy. Divers should be prepared for moderate currents and thermoclines, with water temperatures between 14 and 18 degrees Celsius. Access is by boat only, which helps avoid surf and shore breaks. Beginners are advised to book a guided tour to navigate the shallower reef sections and manage current conditions. Always watch for boat traffic during ascent and surface under the vessel's flag.

Pirate's Cove in Avalon offers a combination of reef and kelp forest environments. The site is accessible by boat only and features depths ranging from 6 to 30 metres, with an average depth of 9 metres. Visibility typically spans 10 to 25 metres, and currents are generally mild. Due to water temperatures between 14 and 17 degrees Celsius, a full wetsuit is recommended. Divers should remain vigilant for boat traffic and potential entanglement in kelp. When navigating the reef, take care to avoid contact with sea urchins and jellyfish. The site is suitable for beginner divers, with a typical dive duration of 45 minutes.

Long Point features a reef and kelp forest system extending from the shallows to depths of 130 metres, with an average depth of 40 metres. Intermediate divers typically explore the 15 to 30 metre range. The site is accessible by boat or from the shore, though shore entries require caution due to constant surf and shore break. Visibility ranges from 10 to 30 metres, and water temperatures fluctuate between 11 and 16 degrees Celsius. Moderate currents are common, and divers must remain vigilant regarding heavy boat traffic in the area. Facilities available at the site include parking, toilets, showers, and a cafe.

Rock Quarry near Two Harbors is a boat-accessible site featuring a combination of reef, artificial reef, and kelp forest habitats. The site reaches depths between 6 and 36 metres, with an average depth of 18 metres. Divers should be prepared for mild currents and potential boat traffic. Visibility typically ranges from 13 to 15 metres, and water temperatures fluctuate between 14 and 18 degrees Celsius throughout the year. Due to the depth and environmental conditions, this site is suited for intermediate divers. Species recorded around this area include California sea lions, Garibaldi, Spanish shawls, horn sharks, California morays, leopard sharks, eagle rays, lesser two-spot octopuses, guitarfish, scorpionfish, California spiny lobsters, Atlantic pyrosomes, wrasses, and egg-yolk jellyfish.

Hen Rock, located off the coast of Avalon, offers a classic California reef and kelp forest environment suitable for beginner divers. The site features depths ranging from 5 to 26 metres, with an average depth of 10 metres. Navigation is straightforward due to mild currents and visibility that typically spans 10 to 30 metres. Access to this site requires a boat. Divers should be aware of heavy boat traffic in the area and must use a surface marker buoy at all times, particularly when surfacing, to ensure visibility to vessel operators. Open Water certification is required to dive here.