Lake Mead offers a diverse freshwater diving experience featuring reefs, walls, wrecks, canyons, and caverns. Depths range from 5 to 162 metres, with an average of 30 metres, catering to both recreational and technical divers. Divers should be prepared for moderate currents, variable visibility between 5 and 15 metres, and significant seasonal temperature fluctuations. Thermoclines are common throughout the water column. Access is available via both shore and boat, though shore entries require caution due to potential surf. Given the presence of overhead environments and entanglement risks, divers are advised to carry primary and backup lighting. Full facilities, including air fills and equipment rental, are available on site.

Mixing Bowl is a freshwater dive site located in Lake Mead, accessible only by boat. The site features an average depth of 20 metres. Divers should be prepared for variable conditions, as visibility typically ranges between 6 and 15 metres. Thermoclines are a notable feature, with significant temperature drops occurring at depth. During summer, surface temperatures reach 21 to 28 degrees Celsius, while deeper water and winter conditions are considerably colder, ranging from 10 to 15.6 degrees Celsius. Due to the depth and potential for boat traffic, this site requires careful planning. Facilities including parking, toilets, and showers are available in the vicinity.

Boulder Beach offers an accessible freshwater dive site on the Nevada side of Lake Mead. Featuring a gently sloping bottom, the site is suitable for beginners and provides depths ranging from 1 to 6 metres, with an average depth of 3 metres. Divers typically spend 90 minutes exploring the area. Entry is via the shore, and conditions include mild currents and visibility between 3 and 12 metres. Facilities available at the site include parking, toilets, showers, and a rinse station. Be aware of potential hazards such as boat traffic, cold water, entanglement risks, and fluctuating visibility. A dive flag is required for all activities at this location.

Boulder Island in Lake Mead offers a freshwater dive experience featuring an artificial reef and a wreck. Access to this site requires a boat. Divers should be prepared for depths averaging 27 metres, with visibility ranging from 3 to 12 metres. Conditions include mild currents and potential thermoclines during summer months, where water temperatures drop significantly below 9 metres. Due to the depth, potential for entanglement, and overhead environments associated with the wreck, this site is suited for intermediate divers. Divers must remain vigilant regarding boat traffic in the area. Facilities available at the broader location include parking, toilets, showers, and a cafe.

Sentinel Island in Lake Mead offers a varied freshwater dive experience featuring reef, wall, and wreck topography. Located 15 metres from the shore, the site requires boat access and is suited for intermediate divers. Depths range from 9 to 36 metres, with an average depth of 36 metres. Divers should be prepared for mild currents and visibility between 6 and 15 metres. The site is subject to significant thermoclines, with surface temperatures reaching 28°C in summer, while temperatures below 18 metres drop to 11-15°C. Winter temperatures remain in the 10-15°C range. Hazards include deep water, potential entanglement, and low visibility.

Wreck Alley in Lake Mead features several deliberately sunk vessels across a depth range of 9 to 90 metres. This freshwater site offers both shore and boat access, with wrecks located approximately 90 metres from the shore. Divers encounter mild currents and variable visibility ranging from 1 to 15 metres. A thermocline is present, with temperatures dropping significantly below 18 metres. Due to the deep nature of the wrecks and potential overhead environments, this site is suited for advanced and technical divers. Divers should monitor for local boat traffic and use caution regarding entanglement risks within the structures. Showers are available at the site.

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.

Kingman Wash in Lake Mead offers a freshwater diving experience featuring a mix of wall and muck topography. The site is accessible via a shore entry with a gentle, sloping bottom that is suitable for beginner divers. Depths range from 3 to 16 metres, with a deeper area located to the south. Divers should be prepared for variable visibility between 5 and 25 metres and the presence of thermoclines at 9 to 12 metres and 18 metres during summer months. Water temperatures fluctuate significantly, ranging from the low 50s F in winter to the high 80s F at the surface in summer. The site is reached via a 4-mile dirt road.