How deep is Portage Quarry?

Portage Quarry ranges from 3 to 21.3 metres deep (10–70 feet). It is a freshwater site. Depths vary across the site, so plan your profile to your training and verify conditions locally.

Is Portage Quarry a shore dive or a boat dive?

Portage Quarry is a shore dive — you can enter from land. The entry is recorded as an easy walk-in. The entry area is recorded as sheltered from surge. No facilities are recorded at 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.

What will I see at Portage Quarry?

Divers at Portage Quarry in United States commonly report sightings of Koi, Rainbow trout, Largemouth bass, Smallmouth bass, and Bluegill. Largemouth bass, Smallmouth bass, and Bluegill are recorded as common sightings, while Koi and Rainbow trout are reported only occasionally. Marine life varies by season and conditions—check the site page for recent diver observations and photos.

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Shore entry

Portage Quarry

Ohio, United StatesDirections

Open Water suggested3–21 m depthShore entry

Portage Quarry at a glance

Portage Quarry is a shore dive site in Ohio, United States with depths of 3–21.3 m (10–70 ft). Typically most favorable Sep · from 3 years of archive data. Divers commonly see Koi, Rainbow trout, and Largemouth bass. Check the latest conditions and entry details before you go.

Wind model · graded 13h ago

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Tap a factor for its source and model point

Site hazards: No current dive support on site; trespassing if entered while closed; thermocline and silt when it operated

Read the full hazards ↓

Dive windows this week

Best: Fri

Fri8:00–20:00

Sat8:00–20:00

Sun8:00–20:00

Mon8:00–20:00

Tue17:00–20:00

Wed8:00–20:00

Thu8:00–20:00

Favorable windowModerate window— no window

First light 6:43 · Sunrise 7:11 · Sunset 19:51

Source: Open-Meteo wind · graded 13h ago

Forecast only — always assess conditions on site.

Forecast · NOAA tide model

Tide & slack timing

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: Largemouth bass, Smallmouth bass, Bluegill

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.

Jan77% 12 kn
Feb61% 13 kn
Mar59% 14 kn
Apr58% 13 kn
May77% 11 kn
Jun80% 11 kn
Jul87% 9 kn
Aug89% 10 kn
Sep94% 9 kn
Oct77% 11 kn
Nov71% 12 kn
Dec72% 12 kn

September hastypically 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 July 2026

Site details

Portage Quarry Recreation Club, just south of Bowling Green, was for decades one of Ohio's most popular dive quarries: a 23-acre spring-flooded limestone pit with average depths of 50-60 feet and a maximum around 70 feet. Attractions sunk for divers included a 68-foot Hansa jet, a bladeless helicopter, a school bus, a grain silo and a swim-through semi-trailer. The property changed hands and the recreation club is now listed as closed; divers should confirm status before planning a visit.

shorewreck

No current dive support on site; trespassing if entered while closed; thermocline and silt when it operated

Reviews

No reviews yet — this site is waiting for its first. Dived here? Your rating and a few lines help the next diver.

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