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Map of Clear Lake - Main Pool Sunken Forest
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Clear Lake - Main Pool Sunken Forest

Oregon, United StatesDirections
AOW suggested3–31 m depthBoth entry

Clear Lake - Main Pool Sunken Forest at a glance

Clear Lake - Main Pool Sunken Forest is an advanced both dive site in Oregon, United States with depths of 3–30.5 m (10–100 ft). Typically most favorable Jul–Aug · from 3 years of archive data. Divers commonly see Freshwater shrimp and Trout. Check the latest conditions and entry details before you go.

Wind model · graded 2h ago
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Tap a factor for its source and model point

Site hazards: Near-freezing spring water with high risk of regulator freeze/free-flow at depth; altitude and deep-dive profile; fishing line and lures; large site easy to get disoriented in.

Read the full hazards ↓

Dive windows this week

Best: Mon
Fri11:00–20:00
Sat7:00–18:00
Sun9:00–20:00
Mon7:00–20:00
Tue7:00–20:00
Wed7:00–20:00
Thu7:00–20:00

Favorable windowModerate window— no window

First light 6:13 · Sunrise 6:42 · Sunset 19:26

Source: Open-Meteo wind · graded 2h 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

Best time: Fall for best visibility; winter and spring to avoid crowds.

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. Jan84% 8 kn
  2. Feb85% 8 kn
  3. Mar84% 8 kn
  4. Apr96% 8 kn
  5. May97% 7 kn
  6. Jun98% 7 kn
  7. Jul100% 7 kn
  8. Aug100% 7 kn
  9. Sep97% 7 kn
  10. Oct92% 8 kn
  11. Nov80% 8 kn
  12. Dec70% 9 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.

Species seen here

Fills & rentals nearby

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

Data updated June 2026

Site details

A spring-fed lake in the Central Cascades along the McKenzie River, formed when a lava flow dammed the river roughly 3,000 years ago, drowning a standing forest. Visibility commonly exceeds 100 feet (sometimes 200+ in fall), letting divers see the surface from 100 feet down in the deep spring potholes. The main draws are the submerged forest of upright tree trunks up to 80 feet tall, the deep basalt potholes where ice-cold spring water wells up, and the extreme clarity. Motorized boats are banned. Water is 31-42F, making regulator free-flows a real risk, and this is an altitude dive (over 3,000 feet).

boatshore

Near-freezing spring water with high risk of regulator freeze/free-flow at depth; altitude and deep-dive profile; fishing line and lures; large site easy to get disoriented in.

Reviews

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