SCUBA Catch of the day in Los Cabos

Do you know the SCUBA Catch of the day in Los Cabos? We see him in the Cabo San Lucas Marine Park and Cabo Pulmo. Look close since he is hard to spot.

Estuarine Stonefish
Synanceia horrida (Linnaeus, 1766)

The total length of a stonefish can be from 28 cm to 47 cm (11″ to 18.5″). The head, body and fins are generally dark brown. The skin is warty, scaleless and often covered in a short coat of filamentous algae. Thirteen sharp dorsal spines are each contained in a thick sheath of skin. The head has deep pits and grooves. The eyes are small and situated on a raised bony structure. The pectoral fins are enlarged and fleshy.

We often see the stonefish on the local dives in the Cabo San Lucas Marine Park and in Cabo Pulmo.

Stonefish are extremely well camouflaged and often almost indistinguishable from their natural surrounds. The venomous dorsal fin spines can cause extremely painful wounds and other serious medical issues.

Stonefish are the most venomous of all fishes.  The fish usually lies motionless, often partially buried in the substrate and perfectly camouflaged among surrounding coral, rocky reef, rubble, or aquatic plants.

The stonefish has 13 sharp strong dorsal fin spines that are contained within a sheath of thick skin. At the base of each spine there are two venom glands that discharge their contents along ducts in the spine. When disturbed, the fish erects its spines, but maintains its position on the sea floor.

Stings usually occur to the feet of swimmers or waders who have ventured away from clean sandy substrate and closer to the more complex bottom structure preferred by the stonefish. Multiple spines can often penetrate affected limbs, resulting in more extensive envenomation. The pain is immediate, excruciating and may last for many days. Muscular paralysis, breathing difficulties, shock, and sometimes heart failure and death can ensue.

Most scuba divers are aware that they do need to respect the marine life while underwater, but this is just one more reminder that the consequences can be drastic as well as painful.

To prevent stonefish stings, sturdy footwear should be worn on reef flats, or while wading on soft-bottom substrates adjacent to rocky or weedy areas.  Scuba divers should always be aware of their environment – in all 360 degree.  An antivenene for stonefish stings has been developed. In the event of a sting, the victim should leave the water, apply first aid and seek medical attention as soon as possible.

Catch of the day in Los Cabos


night dive with amigos del mar


Let’s talk about Cabo San Lucas Night Dive. Last Thursday evening, Luis and two drivers went  on a night dive with Amigos Del Mar in the Cabo San Lucas Marine Park. Annette and Rob had been diving with Amigos Del Mar all week. We normally require a minimum of four people for a specialty dive – but we always take care of our good customers.

The check in for the night dive is 6:45 pm.  After we get Annette and Rob signed in we head down to the marina and the dive boat. At about 7:10 pm there was just a very little bit of light in the sky and so that’s when we headed down into the water.

After the first 10 minutes in the water the sun had finished setting and it was pitch black 50 feet down.  The first thing we spotted were the sleeping parrotfish. And no, we did not wake them up.  Our next encounter was when two white tip reef sharks cruised past us. You never know what you’ll find when you goon a night dive with Amigos Del Mar.

Of course, we saw spiny lobster and slipper lobsters. Too bad it is a Marine Park and we only take pictures but NEVER touch. They really look like they would’ve tasted good.  As we flashed our lights into the dark we could pick up the red light from the eyes of the crustaceans. That’s how we find the lobsters.  You flick your light on, then flick it off and look for the red spots. We also picked up some crabs and shrimp eyes that way.

The water was 76 degrees and the visibility, with our lights on, was about 40 feet. That’s actually pretty good for a night dive.  And for the finale, Luis, Annette and Rob swirled their hands through the water and created their own light show with the phosphorescence they created.

The fun times are one more reason to go on a night dive with Amigos Del Mar.

cabo san lucas night dive with amigos del mar