Tamarack Beach is a primitive freshwater site near Walker Lake, United States, offering a shore entry for both divers and snorkellers. The underwater topography consists primarily of featureless sand and silt, punctuated by occasional submerged rocks featuring alkaline crusts. Typical dives at this location last approximately 60 minutes. The site is suitable for beginners, though snorkelling opportunities are limited. The habitat supports various temperate freshwater fish and invertebrates, though specific species sightings are not confirmed. On-site facilities include toilets for visitor use.

20 Mile Beach is the northernmost public access point on Walker Lake, offering wide views of the Gillis Range. The site features a gradual slope, resulting in shallow water that extends a long distance from the shore. Snorkelling here is suitable for beginners, with depths ranging from 2 to 5 metres and an average depth of 3 metres. Access is via the shore. Water temperatures vary significantly throughout the year, with the swimming season typically occurring from June to September when temperatures exceed 20°C. Outside of these months, water temperatures are considerably cooler, averaging 10.7°C in April.