Nelson's Landing in Lake Mead offers a freshwater environment characterised by dramatic canyon walls and submerged boulders. The site features a varied topography including reef-like structures and steep walls, with depths ranging from 2 to 18 metres. Snorkellers can access the water directly from the shore. Conditions are generally suitable for intermediate snorkellers, with visibility typically between 10 and 25 metres and mild currents. Water temperatures are influenced by releases from the Hoover Dam, often ranging between 11 and 13 degrees Celsius. The site is well-equipped with facilities including parking, toilets, showers, changing rooms, and a rinse station, alongside on-site equipment rental and air fills.

Willow Beach is a freshwater dive site located on the Colorado River between Hoover Dam and Davis Dam. Divers access the water from the shore, where depths range from 3 to 17 metres with an average of 8 metres. The site features reef, wall, and drift diving, alongside artificial reef structures. Water temperatures are influenced by Hoover Dam releases, remaining consistently cold at 11 to 13 degrees Celsius, though surface temperatures may rise in summer. Visibility typically spans 5 to 25 metres. Hazards include boat traffic, cold water, entanglement risks from fishing lines near the pier, and moderate currents. The site is suitable for beginners, with typical dives lasting 40 minutes.

Box Cove is a quiet site located in Lake Mead, featuring steep underwater rock faces and vertical walls. These structures create a distinct environment where fish can be found sheltering within crevices. The site is accessible by both boat and shore, making it a versatile location for snorkelers. Conditions at this freshwater site can vary, and it is best suited for intermediate snorkelers due to the nature of the terrain. While the habitat supports various temperate freshwater fish and invertebrates, visitors should focus on the geological features of the walls during their exploration.

Ski Cove is a sheltered freshwater site located in Lake Mead, situated 305 metres from the shore. The site features a shallow perimeter with a depth range of 1 to 5 metres, averaging 3 metres. Conditions are generally mild, though visibility fluctuates between 5 and 15 metres. During summer months, a thermocline may develop, resulting in cooler and darker water at depth. Access is available via both shore and boat. Due to the presence of houseboats in the area, divers and snorkellers should remain vigilant regarding boat traffic. Facilities at the site include parking, toilets, showers, changing rooms, a rinse station, air fills, equipment rental, a cafe, a dive shop, and boat charter services.

Wreck Alley is a freshwater dive site located in Lake Mead. The site features a consistent depth of approximately 14 metres. Given the nature of this inland location, divers should expect typical freshwater conditions. Access to the site is generally managed via boat or shore depending on current lake levels and local regulations. This location is suitable for divers looking for a specific depth profile within the lake environment. As a freshwater site, it does not feature marine life or coral structures. Divers should ensure they are prepared for the specific challenges associated with freshwater lake diving in the United States.

Six-Mile Cove in Lake Mead offers a freshwater diving experience characterised by sandy beaches and rocky outcrops. The site is suitable for beginners, with depths ranging from 2 to 11 metres and an average depth of 6 metres. Divers and snorkellers can expect mild currents and visibility between 5 and 15 metres. Access is via a shore entry from a rugged dirt road. Water temperatures vary significantly by season, ranging from 15.7 to 20 degrees Celsius in April and reaching up to 30 degrees Celsius during summer months. Facilities at the site include toilets, showers, and a rinse station. Typical dives last approximately 45 minutes.

Beaver Cove in Lake Mead is a freshwater dive site featuring an artificial reef. The site is accessible only by boat and is suitable for beginners. Divers can expect depths ranging from 9 to 10 metres, with an average depth of 9 metres. Conditions include mild currents and visibility typically between 5 and 15 metres. Thermoclines are present, with surface temperatures fluctuating between 4°C and 27°C, while bottom temperatures remain between 4°C and 10°C. Typical dive times are approximately 45 minutes. Due to the nature of the location, divers should remain aware of boat traffic in the area. Facilities available nearby include parking, toilets, showers, and boat charter services.

Black Canyon in Lake Mead offers a unique freshwater diving experience where the Colorado River once carved through volcanic rock. Divers can explore sheer walls, artificial structures, and wreck sites at depths ranging from 9 to 40 metres. Visibility typically spans 5 to 10 metres. The site is suited for intermediate divers due to moderate currents, deep-diving profiles, and the presence of thermoclines at 9 to 12 metres and 18 metres. Boat access is required, and divers must remain vigilant of heavy boat traffic. The habitat supports various temperate freshwater fish and invertebrates typical of the region.