What water level is good for paddling Green River — Dennison Ferry to Green River Ferry?

This section is generally runnable at below 20 ft. Below that it gets too low and bony; well above the top of the range it becomes pushy and then dangerous. We compare the live USGS reading to that range to produce today's verdict.

How do I check Green River levels?

We read USGS gauge 03309000 — the same public data USGS publishes — about every 30 minutes and compare it to the runnable range for this reach. You can also view the raw gauge yourself at waterdata.usgs.gov.

Is Green River — Dennison Ferry to Green River Ferry good for beginners?

This is a flatwater section — no rapids under normal levels — so it's beginner-friendly when the gauge is in range. High water changes everything: cold, fast water is dangerous for anyone.

When is the best time to paddle Green River here?

Typically April–October, when flows are most reliable for this section. Spring can run high after rain or snowmelt; late summer can drop too low. Always check today's gauge reading rather than assuming.

How long does it take to float Green River — Dennison Ferry to Green River Ferry?

This reach is about 7.6 miles, roughly 3 hours at a relaxed pace. Higher water is faster; low water and headwinds are slower. Add time for stops.

Green River — Dennison Ferry to Green River Ferry: River Level Today — Can You Paddle It?

Flatwater7.6 mi · ~3 hrGreen RiverKentucky

Verdict · updated Aug 26, 10:00 PM UTC

Good to paddle

Levels are within the typical runnable range for this section.

9.3 ft

468 cfs

USGS gauge 03309000

Runnable ? – 20 ft

02024

What this means today

At 9.3 ft the Green River is 10.7 ft under the 20 ft ceiling for this reach. There is no published minimum here, so a low reading may still be too thin to float — the trend below is the better guide.

Over the last 24 hours it has barely moved, 9.4 ft to 9.3 ft. Daily average flow — a different measurement from the gauge height this reach is graded on — has run between 437 cfs and 752 cfs, 33% lower at the end of the week than the start.

Paddling Dennison Ferry to Green River Ferry

Green River at Dennison Ferry to Green River Ferry is a 7.6-mile Flatwater float in Kentucky — no rapids under normal flows, just moving water and the odd riffle. Most paddlers put in at Dennison Ferry Access (Mammoth Cave NP) and take out at Green River Ferry Access (Mammoth Cave NP), a trip that runs about 3 hours at a relaxed pace.

Whether it's worth the drive comes down to flow. This section generally paddles well at below 20 ft. Much below that and the Green River gets low and bony, so you end up scraping gravel and walking the shallows; well above the top of the range it turns fast, cold and pushy, which is a more serious day than most casual boaters want. We read USGS gauge 03309000 about every 30 minutes and compare the live number to that window, so the verdict at the top of this page reflects conditions right now rather than a monthly average.

Flows here are usually most dependable April–October. Spring can run high after rain or snowmelt, and late summer often drops too low to float well — but the gauge always beats the calendar, so check today's reading before you go.

7-day flow trend

Daily mean flow (cfs), past 7 days. Shaded band = runnable range.

Section facts

Difficulty: Flatwater
Length: 7.6 mi
Float time: ~3 hr
Best months: April–October
Put-in: Dennison Ferry Access (Mammoth Cave NP)
Take-out: Green River Ferry Access (Mammoth Cave NP)

Reading USGS gauge 03309000 — GREEN RIVER AT MAMMOTH CAVE, KY ↗

FAQ

What water level is good for paddling Green River — Dennison Ferry to Green River Ferry?: This section is generally runnable at below 20 ft. Below that it gets too low and bony; well above the top of the range it becomes pushy and then dangerous. We compare the live USGS reading to that range to produce today's verdict.
How do I check Green River levels?: We read USGS gauge 03309000 — the same public data USGS publishes — about every 30 minutes and compare it to the runnable range for this reach. You can also view the raw gauge yourself at waterdata.usgs.gov.
Is Green River — Dennison Ferry to Green River Ferry good for beginners?: This is a flatwater section — no rapids under normal levels — so it's beginner-friendly when the gauge is in range. High water changes everything: cold, fast water is dangerous for anyone.
When is the best time to paddle Green River here?: Typically April–October, when flows are most reliable for this section. Spring can run high after rain or snowmelt; late summer can drop too low. Always check today's gauge reading rather than assuming.
How long does it take to float Green River — Dennison Ferry to Green River Ferry?: This reach is about 7.6 miles, roughly 3 hours at a relaxed pace. Higher water is faster; low water and headwinds are slower. Add time for stops.

Nearby sections

Good to paddle · 9.3 ft