Arrow Point is a reef and kelp forest site located off the coast of Two Harbors. Accessible only by boat, the site features depths ranging from 8 to 40 metres, with an average depth of 15 metres. Visibility typically spans 10 to 30 metres. The site is characterised by strong currents that can shift quickly, requiring divers to remain close to the boat entry point and monitor conditions throughout the dive. While suitable for beginners, those with less experience should exercise caution, dive with a guide or experienced buddy, and remain in the shallower sections of the reef to avoid the deeper range.

Pebbly Beach in Two Harbors provides a versatile shore entry suitable for beginner divers. The site features a combination of reef, wreck, and kelp forest topography. Divers can expect mild currents and visibility ranging from 10 to 30 metres. Water temperatures fluctuate between 15 and 21 degrees Celsius throughout the year, necessitating appropriate thermal protection. Due to the location being an active area, boat traffic is a significant hazard. Divers should remain vigilant during entries and exits and use a safety sausage upon surfacing to maintain visibility to passing vessels.

Doctors Cove in Two Harbors offers a diverse underwater environment featuring a mix of reef, wreck, and kelp forest. This site is accessible only by boat and is well-suited for beginners due to its mild currents and manageable depths, which range from 10 to 20 metres with an average of 15 metres. Visibility typically spans 10 to 20 metres. Divers should be prepared for water temperatures between 14 and 18 degrees Celsius, making a 5mm wetsuit, hood, and gloves advisable. When navigating the site, be aware of local surge and swell conditions, and take care around sharp coral and rocks.

Johnson's Rocks is a pinnacle and kelp forest site located 228 metres off the coast of Two Harbors. The topography features a mix of reef and pinnacle structures, with depths ranging from 30 to 90 metres. Due to strong currents and potential entanglement risks within the kelp, this site is suited for intermediate to advanced divers. Visibility typically spans 9 to 20 metres. Access is by boat only, and divers should exercise caution regarding surf conditions at the entry point. Given the water temperatures of 13 to 16 degrees Celsius, a drysuit or thick wetsuit is recommended for comfort during the typical 45-minute dive.

Black Point is a shallow reef and kelp forest site located off the coast of Two Harbors. With depths ranging from 1 to 8 metres, this site is well-suited for beginner divers focusing on buoyancy control. The environment features mild currents and visibility typically between 10 and 30 metres. Water temperatures fluctuate between 15 and 20 degrees Celsius throughout the year, making a wetsuit advisable. Access to the site is by boat only. Divers should remain aware of local surge and swell patterns near the reef structure and monitor the surface for boat traffic at all times. A surface marker buoy is recommended before ascending.

Emerald Bay in Two Harbors offers a diverse underwater environment featuring an artificial reef, a wreck, and a kelp forest. The site spans depths from 10 to 60 metres, with an average depth of 35 metres. Visibility is highly variable, ranging from 5 to 70 metres. Divers should expect mild currents and water temperatures between 13 and 16 degrees Celsius, necessitating a 7mm wetsuit or drysuit. Access is by boat only, and divers must remain vigilant regarding surface boat traffic. Due to the depth and cold water, this site is suited for intermediate divers.

Indian Rock, located off the West End of Santa Catalina Island near Two Harbors, features a central rock formation surrounded by shallow reefs and kelp forests. The site is suitable for beginners, with depths ranging from 5 to 45 metres and an average depth of 10 metres. Snorkellers can observe common Garibaldi, as well as less frequently encountered species including Leopard Shark, California Moray, Spanish Shawl, Horn Shark, Harbor Seal, and Guitarfish. California Spiny Lobster and various wrasses are also present. Entry is possible by both shore and boat. Visibility varies between 5 and 25 metres, and currents are generally mild. Be aware of boat traffic in the area.

Johnsons Rock is a pinnacle reef located 400 metres off the coast of Two Harbors. The site features a kelp forest environment with depths ranging from 6 to 27 metres, averaging 15 metres. Divers should expect moderate currents that can strengthen around the pinnacle, making it suitable for intermediate divers. Boat access is required to reach the site. Visibility typically spans 10 to 30 metres, allowing for clear observation of the rock structure. Night diving is permitted. Due to water temperatures between 15 and 19 degrees Celsius, a 5 mm wetsuit or a drysuit is recommended. Divers should exercise caution regarding currents, surf, and sharp rocks.