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Clear Lake - Main Pool Sunken Forest

Oregon, United StatesDirections

AOW suggested3–31 m (10–100 ft) 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.

Next window today· 8:00–15:00 · favorable & moderate

Wind forecast for this hour · 4:00 · run 18 h 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

Sun

8 kn wind (8 kn wind)

Mon

3 kn wind (3 kn wind)

Tue

3 kn wind (3 kn wind)

Wed

5 kn wind (5 kn wind)

Thu

4 kn wind (4 kn wind)

Fri

3 kn wind (3 kn wind)

Sat

Favorable windowModerate window— no window

Every forecast dive window each day, site-local time, from wind forecasts. Numbers under each bar are daylight averages.

First light 7:06 · Sunrise 7:36 · Sunset 18:07 · some windows run past sunset

Source: Open-Meteo wind · updated 24 Oct, 10:15 GMT-7

Forecast only — always assess conditions on site.

Compare this weekend’s windows near Clear Lake - Main Pool Sunken Forest

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.

January, 84% of days have historically been favorable, wind has typically been 8 knots
February, 85% of days have historically been favorable, wind has typically been 8 knots
March, 84% of days have historically been favorable, wind has typically been 8 knots
April, 96% of days have historically been favorable, wind has typically been 8 knots
May, 97% of days have historically been favorable, wind has typically been 7 knots
June, 98% of days have historically been favorable, wind has typically been 7 knots
July, 100% of days have historically been favorable, wind has typically been 7 knots, historically most favorable
August, 100% of days have historically been favorable, wind has typically been 7 knots, historically most favorable
September, 97% of days have historically been favorable, wind has typically been 7 knots
October, 92% of days have historically been favorable, wind has typically been 8 knots
November, 80% of days have historically been favorable, wind has typically been 8 knots
December, 70% of days have historically been favorable, wind has typically been 9 knots

July and August have typically 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

Rough labels: “Commonly seen” usually means two or more recorded sightings near this site in public dive logs (GBIF), “Occasionally seen” one; “Seasonal” and “Rarely seen” come from dive-guide research. Not a measured rate.

Fills & rentals nearby

No dive shops mapped within 25 km (16 mi). 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.

How deep is Clear Lake - Main Pool Sunken Forest?

Clear Lake - Main Pool Sunken Forest ranges from 3 to 30.5 metres deep (10–100 feet) — a deep dive at its limit. It is a freshwater site rated as advanced difficulty. Depths vary across the site, so plan your profile to your training and verify conditions locally.

Is Clear Lake - Main Pool Sunken Forest a shore dive or a boat dive?

Clear Lake - Main Pool Sunken Forest can be dived from shore or by boat. The entry is recorded as an easy walk-in. The entry area is recorded as sheltered from surge. Basic facilities are recorded at or near the site, and cell service is recorded as good. Entry details and parking notes, where known, are listed in the access section of this page.

Can beginners dive Clear Lake - Main Pool Sunken Forest?

Clear Lake - Main Pool Sunken Forest is rated as advanced difficulty, which may not suit new divers. Listed depths run from 3 to 30.5 metres (10–100 feet). Access is from shore or by boat, with the entry recorded as an easy walk-in. Consider your experience level, conditions, and local guidance before planning.

When is the best time to dive Clear Lake - Main Pool Sunken Forest?

Fall for best visibility; winter and spring to avoid crowds. Diveable year round; fall offers best visibility, winter beats the crowds. Conditions vary, so check the latest reports and forecasts on the dive site page before your trip.

What will I see at Clear Lake - Main Pool Sunken Forest?

Divers at Clear Lake - Main Pool Sunken Forest in United States commonly report sightings of Freshwater shrimp and Trout. Freshwater shrimp and Trout are reported only occasionally. Marine life varies by season and conditions—check the site page for recent diver observations and photos.

What hazards are recorded at Clear Lake - Main Pool Sunken Forest?

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. Hazards and conditions change, so verify current local information before diving.

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