Roca Partida

Verified2026-09-11 checkedPelagicWall

A bare rock in open Pacific with vertical walls and no bottom in sight — pure big-animal diving.

Depth: 15–40 m49–131 ft
Difficulty: Technical
Entry: Liveaboard
Typical current: Strong
Coordinates: 18°59.982′N 112°4.386′W
Activities: Scuba · Technical

Roca Partida is a rock barely 100 m long rising from very deep water, roughly 100 km from the nearest land. The walls are vertical with ledges where whitetips stack up, and the surrounding blue produces silvertips, giant mantas, tuna and, in season, humpback whales. There is no reef and no shallow refuge, so buoyancy and gas management are the entire dive. Liveaboard access only.

Liveaboard from Cabo San Lucas; roughly 24–30 hours of crossing.

Best season

ExcellentDec–Apr
GoodMay
GoodNov

Before you get in

Past 30 m, where no-stop time and gas both go quickly and nitrogen narcosis starts to show.
A wall. There is no bottom in sight to judge against, so depth is kept by the gauge alone — and it is easy to end up deeper than intended.
Recorded as a site with strong current. Settle your gas reserve, when you would call the dive, and your surface signal before you get in.
Graded technical — it assumes equipment and procedures outside recreational training.

Taken from this site’s recorded depth, type and current, and nothing else. An empty list is not a safe site — the sea on the day, the local geography and the boat traffic are not in it. The briefing on the spot comes first.

Conditions

Water temperature: 27°C81°F
Wave height: 2 m7 ft
Air temperature: 26.5°C80°F
Wind speed: 3.2 km/h2 mph

Updated 2026-10-07 16:15 UTC · Source: Open-Meteo

Weather data by Open-Meteo.com (CC BY 4.0)

Conditions are reported for information only. Assess the site yourself and follow your guide and your training.

No live conditions for this site yet.

We only show numbers we can attribute to a source.

Sea state and tide

On a date

Tide · 10/7

High06:080.90 m
Low11:58-0.08 m
High18:021.06 m

Forecast heights against mean sea level. Real tides in a bay, a harbour or over a flat can differ — check an official tide table before you get in.

Pick a day to see its tide

Only wave height and wind are scored, because those are what close a boat ramp or a shore entry. Water temperature is reported and never scored: 12°C is an ordinary dive in a drysuit and punishing in a 3 mm, and a number that cannot see your suit has no business marking it down. Stars do not decide whether you get in — you and your guide do, on the day.

Weather data by Open-Meteo.com (CC BY 4.0)

Marine life you may see

Giant oceanic manta rayMobula birostrisCommon
Whitetip reef sharkTriaenodon obesusCommon
Scalloped hammerheadSphyrna lewiniSeasonal
Whale sharkRhincodon typusRare
Silvertip sharkCarcharhinus albimarginatusCommon
Galapagos sharkCarcharhinus galapagensisCommon
Bottlenose dolphinTursiops truncatusCommon
Munk's devil rayMobula munkianaNov–AprSeasonal
Yellowfin tunaThunnus albacaresCommon
Humpback whaleMegaptera novaeangliaeJan–AprSeasonal

From divers

What people who were in the water reported. Not a forecast, and not a judgement about whether the site is safe to dive.

No recent reports from divers. If you dived here in the last two weeks, you can say how it was.

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