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Map of Mana Crack / Na Pali Coast
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Mana Crack / Na Pali Coast

Hawaii, United States
AOW suggested14–30 m (46–98 ft) depthBoat entry3mm wetsuit typical

Boat dive — see Entry & access.

Mana Crack / Na Pali Coast at a glance

Mana Crack / Na Pali Coast is an advanced boat dive site in Hawaii, United States with depths of 14–30 m (46–98 ft). Typically most favorable Jul · from 3 years of archive data. Divers commonly see Spotted eagle ray, Barracuda, and Whitetip reef shark. Recent reports put the water around 27°C (80°F). Check the latest conditions and entry details before you go.

Next window today· 7:00–19:00 · favorable · sunset 18:05

Forecast for this hour · 4:00 · run 20 h ago
1.6 m (5.2 ft)waves — about a meter and a half expected (waves — about five feet expected)

Tap a factor for its source and model point · Forecast 27°C · seasonal avg 28°C ( · Forecast 80°F · seasonal avg 82°F)

Site hazards: Remote offshore location, current/drift, depth, boat pickup logistics, wind exposure, long day trip, bluewater separation risk, and limited shelter if conditions deteriorate.

Read the full hazards ↓

Dive windows this week

Mon7:00–19:00 favorable

1.7 m waves · 4 kn wind (5.6 ft waves · 4 kn wind)

Tue7:00–8:00 moderate, 8:00–19:00 favorable

1.8 m waves · 3 kn wind (5.8 ft waves · 3 kn wind)

Wed7:00–10:00 favorable, 10:00–19:00 moderate

1.5 m waves · 2 kn wind (4.9 ft waves · 2 kn wind)

Thu7:00–19:00 moderate

1.4 m waves · 3 kn wind (4.5 ft waves · 3 kn wind)

Fri7:00–19:00 moderate

1.4 m waves · 2 kn wind (4.5 ft waves · 2 kn wind)

Sat7:00–19:00 moderate

1.4 m waves · 6 kn wind (4.5 ft waves · 6 kn wind)

SunNot in the forecast yet

Favorable windowModerate window— no window

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

First light 6:17 · Sunrise 6:40 · Sunset 18:05 · some windows run past sunset

Source: Open-Meteo marine · model point 9.8 km from site · updated 25 Oct, 07:23 GMT-10

Forecast only — always assess conditions on site.

Compare this weekend’s windows near Mana Crack / Na Pali Coast

Forecast · NOAA tide model

Tide & slack timing

Loading tide predictions

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: Best on calm west/Na Pali weather windows with early starts to beat wind; operator may reroute when conditions are unsafe.

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. January, 9% of days have historically been favorable, water has typically been 25°C (77°F), waves have typically been 2.5 m (8.3 ft), wind has typically been 13 knots
  2. February, 6% of days have historically been favorable, water has typically been 25°C (76°F), waves have typically been 2.2 m (7.3 ft), wind has typically been 13 knots
  3. March, 32% of days have historically been favorable, water has typically been 25°C (76°F), waves have typically been 1.9 m (6.3 ft), wind has typically been 13 knots
  4. April, 42% of days have historically been favorable, water has typically been 25°C (77°F), waves have typically been 1.8 m (5.9 ft), wind has typically been 13 knots
  5. May, 63% of days have historically been favorable, water has typically been 26°C (78°F), waves have typically been 1.5 m (5.0 ft), wind has typically been 11 knots
  6. June, 91% of days have historically been favorable, water has typically been 26°C (80°F), waves have typically been 1.4 m (4.4 ft), wind has typically been 10 knots
  7. July, 91% of days have historically been favorable, water has typically been 27°C (80°F), waves have typically been 1.3 m (4.3 ft), wind has typically been 10 knots, historically most favorable
  8. August, 88% of days have historically been favorable, water has typically been 27°C (81°F), waves have typically been 1.3 m (4.4 ft), wind has typically been 10 knots
  9. September, 88% of days have historically been favorable, water has typically been 28°C (82°F), waves have typically been 1.4 m (4.5 ft), wind has typically been 10 knots
  10. October, 49% of days have historically been favorable, water has typically been 28°C (82°F), waves have typically been 1.7 m (5.5 ft), wind has typically been 10 knots
  11. November, 20% of days have historically been favorable, water has typically been 27°C (80°F), waves have typically been 2.1 m (6.8 ft), wind has typically been 12 knots
  12. December, 10% of days have historically been favorable, water has typically been 26°C (79°F), waves have typically been 2.4 m (7.8 ft), wind has typically been 12 knots

July has 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.

The underwater calendar

When these animals are most recorded around Hawaiʻi — from open sighting data, not a promise.

Watch the whole year animate on the Migrations map

Fills & rentals nearby

No dive shops mapped within 25 km (16 mi). Know one? Add it to the map.

Data updated July 2026

Site details

Mana Crack is a remote offshore fringing reef/ledge system off Kauai's west/Na Pali side with multiple drop points and drift profiles. It is known for clear water, ledge topography, large fish, rays, and reef sharks when conditions cooperate. The site is logistics-heavy and normally run as an advanced boat trip from the west side.

boatdriftreefwall

Remote offshore location, current/drift, depth, boat pickup logistics, wind exposure, long day trip, bluewater separation risk, and limited shelter if conditions deteriorate.

Reviews

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