There was a coldwater current running past the island steadily for the whole two days, and with it came excellent visibility and a great amount of hammerhead, silky, Galapagos, whitetip, and silvertip sharks. That’s on top of the friendly wahoo, the massive schools of tuna, the unique photographing opportunity of a moray eel wrapped comfortably around resting whitetip sharks, and big schools of triggerfish, big-eyed trevally, jacks, and other familiar faces.
Read MoreFinally we went to a new site on the north east side of San Benedicto and found some interesting rock formations with lots of reef life and what appeared to be a moray eel the colour of a Clarion Angelfish. Definitely a place for further investigation. On the run home we came up with a list of possible names for the newly explored sites including Whale Sound, Booby Prize, The Act of Waiting on a Rock and Watching Barnacles although none have been adopted at this time. Maybe a few more dives on the sites will bring out the personality of the sites and the names will become obvious.
Read MoreHighlights 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 MoreInterestingly, one group of divers reported observing behaviour that reminded me very much of the great white sharks of Guadalupe Island. Last season we would see 2 white sharks swim side-by-side as if they were measuring their respective lengths against each other. The smaller animal would then peel off into the blue. The larger animal presumably being the dominant animal. I “think” we saw the same thing with 2 giant manta rays. 2 animals (a chevron manta and a larger black manta) swam in tight formation in a vertical pattern. The smaller chevron then peeled off and disappeared into the blue. Presumably, just like the white sharks, the large black manta ray established it’s dominance and got to hang out with a human.
Read MoreMeasuring 91 metres by 45 metres by 34 metres high, the island is actually the lava plug from a volcano that gradually eroded away around it. It is an amazing 11,000 feet deep around the volcano and we gingerly anchor the Nautilus Explorer in 245 feet of water very close to the lava tube. Roca Partida is a “magnet” for mantas, sharks of all kinds, wahoo, tuna, dorado and all other manner of sub-tropical fish.
Read MoreWe have never seen so many yellowfin tuna in one place. They all seem to be 100 pounds or more, which is a very big tuna! The action got especially hot off the back of the Nautilus Explorer yesterday afternoon as the tuna and wahoo literally exploded out of the water in giant leaps as they chased down their prey. It is quite something to see a 100-pound tuna jump out of the water 200 feet away from the ship.
Read MoreIt was a sunny, hot and cloudless day. The visibility was great, we could hear the humpback whales singing underwater, dolphins were interacting with us, we saw lots of really cute juvenile silky sharks as well as white tip reef sharks hiding in caves in the coral gardens, turtles, loads of fish, aggressive Socorro lobsters, schooling wahoo and, of course, giant manta rays.
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