

Best for beginner divers, 10m, shore entry.
Castle Lake in Siskiyou County is a freshwater shore dive suitable for beginner divers. The site offers visibility ranging from 10 to 30 metres and reaches depths between 10 and 15 metres. With no current to manage, it provides a controlled environment for practising buoyancy and navigation. The water is consistently cold, often reaching 32°F, making appropriate thermal protection such as a drysuit or a thick wetsuit with hood and gloves essential. Facilities at the site include parking and toilets. Divers should arrive early to secure a parking space, as the location remains popular with visitors throughout the year.
41.22982, -122.38138
Cold water is the primary hazard here regardless of the season, so a drysuit or a thick wetsuit with gloves and a hood is strongly recommended even for short dives. Arrive early to secure parking, as the site draws visitors year-round.
West of Siskiyou Lake.
Expected in this region. No sightings logged here yet.
Depth
10m
Visibility
10-30m
Skill Level
Beginner
Entry
Shore
Current
None
Yes, the site is suitable for beginners as it offers depths of 10 to 15 metres and no current, allowing divers to focus on buoyancy and navigation skills.
The site reaches a moderate depth of 10 to 15 metres.
Castle Lake is a shore dive with entry directly from the water's edge.
The primary hazard is the consistently cold water temperature, which requires appropriate thermal protection.
Toilets and parking are available on site.
Visibility at Castle Lake in Dunsmuir typically ranges from 10 metres to 30 metres. Conditions vary with weather, tides, and seasons.