

Best for intermediate divers, shore entry.
Castle Creek is a quiet section of the west shore within the Boise Foothills Reservoirs. The site features natural rock formations underwater that provide structure for the local environment. Divers and snorkellers should be aware of cold water temperatures, which typically range from 15 to 24°C during the summer months. Rapid warming can occur in April and May. Access is via a shore entry, and the site is best suited for intermediate divers due to the potential for boat traffic and cold water conditions. Facilities at the location include parking and toilets.
43.41114, -115.39491
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Skill Level
Intermediate
Entry
Shore
The site's natural rock formations provide habitat for bass and perch.
No, Castle Creek is rated for intermediate skill levels due to the cold water and boat traffic.
Yes, the site is open to both diving and snorkelling, though it has a snorkel rating of 2/5.
Yes, entry to the water at Castle Creek is via the shore.
Divers and snorkellers should remain cautious of boat traffic and cold water temperatures.
Diving at Castle Creek in Anderson Ranch Reservoir requires the following certifications: Open Water. Always dive within your training limits.