El Boiler, San Benedicto

Verified2026-09-11 checkedPelagicReef

A pinnacle where giant oceanic mantas come to be cleaned and stay to interact with divers.

Depth: 12–40 m39–131 ft
Difficulty: Advanced
Entry: Liveaboard
Typical current: Strong
Coordinates: 19°18.000′N 110°49.002′W
Activities: Scuba

El Boiler is a seamount off San Benedicto topping out around 12 m. Giant oceanic mantas — some with five-metre wingspans — visit cleaning stations here and are unusually curious, often hovering over divers apparently to feel the bubbles. Operators ask divers not to touch and not to swim above them; the encounters happen because the animals choose to stay. Silvertip sharks and dolphins are regular. Liveaboard only.

Liveaboard from Cabo San Lucas; roughly 24 hours to the Revillagigedo islands.

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.
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.

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: 27.1°C81°F
Wave height: 1.7 m6 ft
Air temperature: 26.9°C80°F
Wind speed: 9.4 km/h5.8 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

High06:120.88 m
Low12:02-0.06 m
High18:031.04 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
Bigeye trevallyCaranx sexfasciatusCommon
Bottlenose dolphinTursiops truncatusCommon
Silvertip sharkCarcharhinus albimarginatusCommon
Humpback whaleMegaptera novaeangliaeJan–AprSeasonal
Munk's devil rayMobula munkianaNov–AprSeasonal
Yellowfin tunaThunnus albacaresCommon

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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