Schooling juvenile silvertip sharks

Captain Dave reports that on their first morning dive at El Canyon at San Benedicto Island, divers saw two hammerhead sharks swimming alongside a school of silvertip sharks. Some of the Silvertips were very small, measuring less than 2.5ft. Meanwhile, one of the hammerheads was huge for a scalloped hammerhead – an estimated 12 feet!

Read More

New legislation to protect shark populations

Very, very exciting news on our end is the enactment of new legislation in Mexico designed to protect shark populations. I couldn’t be more ecstatic about the news. Is my pleasure inform you that the “Mexican Official Standard Rule NOM-029-PESC-2006, Responsible shark and ray fisheries” was published last February 14, 2007 in the Federal Gazette of the Mexican Government. This set of regulations will improve the management of all shark fisheries (artisanal and offshore) in Mexico and will promote the conservation of shark stocks and vulnerable shark and ray species.

Read More

San Benedicto Island giant mantas interacting with divers

The magic of Socorro Island is that these resident mantas actually choose to approach divers on their own terms. We’ve always felt that there must be “something” in the water around Socorro, as a number of resident animals choose to approach and even initiate physical contact with divers. Not just the manta rays but dolphins, Lumpy our favourite leather bass, and even some of the Socorro lobster.

Read More

Amazingly loud humpback whale song

Captain Dave reports that humpback whales were singing so loudly today that guests could hear the song inside the lower deck staterooms on the Nautilus Explorer!!! It was quite something for our guests while on their dive. In-water visibility was down on the east side of Socorro Island, with lots of phytoplankton in the water column. While this made it hard to spot big pelagic animals off the outer cleaning station at Cabo Pearce, the guests were rewarded with a great show of feeding behaviour by the giant manta rays. 

Read More

Giant manta ray migratory route

Highlights included a huge bait ball of skipjacks being hunted by silky sharks and 100-pound yellowfin tuna, a group of five hammerhead sharks that approached within 40 feet of the divers and a blue water drift dive looking for pelagics. All the usual Roca Partida critters were present, including over 30 white tip reef sharks, silky and Galapagos sharks and some curious wahoo.

Read More

Interesting bottlenose dolphin behaviour at Socorro Island

Divers saw the usual complement of electric rays, Socorro lobster, silky, Galapagos and hammerhead sharks, but their most spectacular encounter was with a single bottlenose dolphin who adopted the divers. We’ve been seeing similar behaviour from the dolphins all winter, where they hang out and literally imitate the divers. If a diver hangs on to the ascent line, the dolphin will rest the underside of his head on the line. If a diver blows bubbles, the dolphins will blow bubbles. If a diver does a 360-degree roll, the dolphin will do a full roll (well actually, they tend to be somewhat playful and will often do a 720-degree roll or even a triple barrel roll).

Read More

Easy passage from San Jose del Cabo to San Benedicto Island

The Canyon came through with good diving with giant manta rays, white tip reef sharks, juvenile silvertip sharks and a small school of hammerhead sharks. A couple of humpback whales came close by the boat, but weren’t in the mood to interact with the divers.

Read More