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Map of Carnelian Bay
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Shore entry

Carnelian Bay

California, United StatesDirections
Open Water suggestedHigh-altitude dive (~6,225 ft)3–8 m depthShore entry

Carnelian Bay at a glance

Carnelian Bay is a shore dive site in California, United States with depths of 3–7.6 m (10–25 ft). Typically most favorable Jul–Aug · from 3 years of archive data. Divers commonly see Rainbow trout, Tahoe sucker, and Signal crayfish (crawdad). Check the latest conditions and entry details before you go.

Wind model · graded 14h ago

Tap a factor for its source and model point

Site hazards: High-altitude dive (~6,225 ft)

Read the full hazards ↓

Dive windows this week

Best: Sun
Fri11:00–20:00
Sat23:00–0:00
Sun0:00–0:00
Mon
Tue
Wed
Thu

Favorable windowModerate window— no window

First light 6:11 · Sunrise 6:38 · Sunset 19:15

Source: Open-Meteo wind · graded 14h ago

Forecast only — always assess conditions on site.

Recent diver reports

Dated firsthand observations from divers — not current conditions.

No diver reports for this site yet. — one dated observation helps every diver after you.

Dived here today — did the forecast match?

What Divers Say

Known for: Rainbow trout, Signal crayfish (crawdad)
Best time: Year-round access; summer for warmest conditions and classic night dives, winter for solitude.

Based on community reviews and site data. Conditions vary — always verify before diving.

Best months, historically

What conditions have historically been typical at this site, month by month — not a forecast.

  1. Jan91% 6 kn
  2. Feb88% 8 kn
  3. Mar86% 9 kn
  4. Apr98% 8 kn
  5. May94% 10 kn
  6. Jun98% 10 kn
  7. Jul100% 10 kn
  8. Aug100% 10 kn
  9. Sep98% 9 kn
  10. Oct98% 8 kn
  11. Nov97% 6 kn
  12. Dec88% 6 kn

July and August havetypically had the largest share of favorable days here. Conditions vary year to year — this is historical context, not a forecast.

Based on 3 years of archive data. Bar height shows the share of days each month whose conditions have historically scored favorably.

Marine life seen at this site

Species noted at this site — not a promise of what you’ll encounter.

Fills & rentals nearby

No dive shops mapped within 25 km. Know one? Add it to the map.

Data updated July 2026

Site details

Carnelian Bay, on Tahoe's north shore at Patton Beach/Waterman's Landing and Carnelian West Beach, is a free, year-round beginner site named for the reddish carnelian stones found along the shoreline. A very gradually sloping sandy bottom averaging 20-25 ft holds a scattering of semi-historic debris — a sunken barge, engine blocks, deteriorating fishing boats and enormous logs — with 50-60 ft visibility typical. It is the lake's most popular summer night-dive site, alive with crawfish, sculpin and rainbow trout after dark.

muckshorewreck

High-altitude dive (~6,225 ft)altitude procedures required; cold water year-round; very long shallow shelf means navigation (compass) skills are needed if venturing beyond ~1,000 ft from shore; summer boat traffic near Waterman's Landing; silt/sand bottom can reduce visibility if disturbed.


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