Honeymoon Cove in Two Harbors offers a shore-entry dive featuring a combination of reef and kelp forest topography. Divers can explore depths ranging from 5 to 30 metres, with an average depth of 15 metres. Visibility typically spans 10 to 20 metres, and currents are generally mild. The site is suited for intermediate divers, though surge and swell conditions vary. Water temperatures range from 14 to 17 degrees Celsius, necessitating the use of a wetsuit. Divers should remain aware of boat traffic near the shore and exercise caution regarding sea urchins and sharp rocks when entering or exiting the water.

The SS Avalon wreck lies at depths between 21 and 27 metres off the coast of Two Harbors. This artificial reef structure provides a focal point in an open-water environment, with visibility ranging from 5 to 21 metres. Divers should expect a thermocline at approximately 12 metres, where temperatures drop and visibility often improves. Water temperatures remain between 15 and 17 degrees Celsius, necessitating appropriate thermal protection. Currents are generally mild, facilitating navigation around the wreck. Due to the significant depth and active boat traffic in the area, this site is suited for intermediate divers. A surface marker buoy is essential for all ascents to ensure safety from passing vessels.

Christmas Tree Cove in Two Harbors offers a varied underwater landscape featuring reef, kelp forest, and wall terrain. Divers can explore depths ranging from 1 to 24 metres, with an average depth of 12 metres. The site is accessed via a shore entry, which requires caution due to a surf break and potential surge. With visibility typically between 3 and 4 metres and moderate currents, this site is suited for intermediate divers who can manage buoyancy and navigation in changing conditions. Water temperatures remain between 14 and 17 degrees Celsius throughout the year, necessitating appropriate thermal protection. Parking is available on-site, though spaces fill quickly on weekends.

Underwater Arch in Two Harbors is a shallow site featuring a distinct rock arch formation. Divers can explore this structure at depths ranging from 1 to 7 metres. The site is accessible only by boat and is suitable for beginners due to the mild currents. Visibility at the site typically ranges between 5 and 10 metres. Water temperatures fluctuate throughout the year, reaching a high of 19C in the summer months and dropping to 15C during the winter. This site offers a straightforward profile for those looking to experience a unique geological feature in the waters of Santa Catalina Island.

Flat Rock is a reef and kelp forest site located in Two Harbors, offering depths between 5 and 12 metres with an average of 8 metres. This location is suitable for intermediate divers and snorkellers, featuring mild currents and visibility ranging from 5 to 15 metres. The site is accessible by both shore and boat, though shore entries require caution due to potential surf, surge, and shore break. Water temperatures fluctuate between 15 and 19 degrees Celsius throughout the year. Night diving is permitted at this location, providing an alternative experience of the reef structure. Divers should confirm local facility availability before arrival.

Hawthorne Reef, located off Two Harbors, offers a varied topography ranging from 3 to 21 metres. This site is suited for advanced divers due to moderate currents and the requirement for boat access. Visibility typically ranges between 5 and 10 metres. Divers may encounter California sea lions, harbour seals, and various nudibranchs including Spanish shawls, Hermissenda, and clown dorids. Other observed life includes scorpionfish, sea stars, red gorgonians, and zoanthids. Given the entanglement risk at this site, carrying a cutting tool is recommended. Water temperatures fluctuate between 15 and 19 degrees Celsius throughout the year, necessitating appropriate thermal protection.

Haggerty's Crane in Two Harbors is a shallow shore dive reaching a consistent depth of 8 metres. The site is defined by a kelp forest that provides structure over a rocky bottom, making it suitable for beginner divers. Visibility typically ranges from 5 to 10 metres. Divers should expect mild currents, though surge and swell conditions are common during shore entry. Water temperatures fluctuate between 15 and 19 degrees Celsius throughout the year, necessitating appropriate thermal protection. Exercise caution when navigating the shallows to avoid sharp rocks and coral. Facilities are not guaranteed on site, so divers should arrive prepared with all necessary equipment.

Pt Vicente Pinnacles is a boat-access reef and pinnacle site located 300 metres from shore near Two Harbors. The topography features significant relief, with depths ranging from 5 to 30 metres and an average depth of 12 metres. Visibility is limited to 3 to 9 metres, requiring divers to focus on the structure of the pinnacles. While currents are generally mild, strong surges can occur, making this an intermediate-level site. Divers should plan their 50-minute dives around slack water and maintain proximity to the boat or descent line. Surface marker buoys are recommended due to local boat traffic.