Soldier Rock Coves is a rugged, rocky area within Glendo Reservoir featuring several small, protected coves. The site consists of submerged rock formations that provide habitat for smallmouth bass and walleye. Snorkelling here is rated 2/5 and is best suited for intermediate participants due to the challenging environment. Water temperatures are cold, particularly in early April when readings range from 3 to 7°C, so appropriate exposure protection is necessary. Divers and snorkellers may encounter low visibility and cold water conditions. Access to the water is available via both shore and boat entries. Facilities at the site include parking and toilets.

Custer Cove is a freshwater site located in Glendo Reservoir, United States. The shoreline features a mix of shale and clay shelves that transition into a sandy beach. Underwater, the transition zones between the rocky substrate and sandy areas provide habitat for local fish. Snorkelling here is suitable for beginners, though conditions vary due to the cold water temperatures, which can range from 4 to 10 degrees Celsius. Deeper sections of the reservoir are colder and may contain thermoclines. Access is via the shore, and the site includes toilet facilities. Snorkellers should remain aware of boat traffic in the area.

Reno Cove at the low water ramp area in Glendo Reservoir offers a rocky shoreline that remains accessible even during periods of significantly low water levels. The site features submerged structures near the old river channel, providing a distinct topography for exploration. Divers and snorkellers should note that conditions vary, with depths starting at one metre and extending into the channel. Access is available via both shore and boat entries. Due to the potential for cold water temperatures in spring and autumn, divers should monitor their time in the water to avoid hypothermia. The site is suited for advanced skill levels, and users must remain vigilant regarding boat traffic and surge.