North Seymour-Mosqueras  E-mail
Santa Cruz Dive Sites

North Seymour: Eagle Rays, Manta Rays, Hammerheads, White-Tipped Reef Sharks, Galapagos Shark, Stingrays, Marbled Rays, Tiger Snake Eels, Moray Eels, Garden Eels, Sea Stars, Sea Turtles, Jacks, Blue and Gold Snappers, Flag Cabrilla, Creolefish, King Angelfish, Barracuda, Heiroglyphic Hawkfish, Frogfish, Yellowtail Surgeonfish, Spotfin Burrfish, Scorpionfish, Cardinalfish, Nudibranch and more. Lunch will be onboard during surface interval.

North Seymour has two dive sites: The ocean side and the channel side. On the ocean side, You dive on a rocky slope and end up in the shallower area close to the island. Jacks, manta rays, eagle rays, marble rays, stingrays and even hammerhead sharks and marlins have been seen here. There are also lots of reef fishes like Yellowtail grunts and bluestriped snappers (rayado) and salemas in schools. Since there are a lot of fish here, you can often observe birds like boobies diving into the water from above and swimming down to catch them and of course there are also sea lions here.

The channel side can be an excellent dive site. The area is not very deep (about 20m) but sometimes there is quite a lot of current. You start from the eastern corner and following the major currents, you dive relatively fast over the rock plateau. Galapagos sharks cruise around and there are fish everywhere. There is a large sandy area at 15m with a large colony of endemic garden eels.

Mosqueras: Sea Lions, Eagle Rays, Hammerheads, White-Tipped Reef Shark, Garden Eels, Snake Eels, Jack, Mackerel, Threebanded Butterflyfish, Sea Turtles, Yellowtail Surgeonfish, Yellow and Blue Striped Snappers, King Angelfish, Parrotfish, Yellowtail Grunt, Peruvian Grunt, Cardinalfish, Galapagos Grunt, Sea Stars and more.

Mosqueras is a sand islet which lies north to south in a shallow area between Baltra and Seymour. There’s a cleaning station at about 15 m where snappers are in abundance and hammerheads may gather. The large colony of garden eels often have a large field of cushion stars beyond. The surface interval is in a shallow sandy bottom where you may snorkel with large colonies of sea lions.  Check out the mini-trip report on our blog.

North Seymour - Mosqueras is a nightmare for underwater photographers because of how great it is for everything, from tiny nudibranchs to Mantas (especially between December and April).  Add to that all the rays (spotted eagle rays, marble rays, golden eagle rays, stingrays), the "piles" of sleeping white tipped reef sharks, sea lions, sea turtles and hammerhead sharks. Several thick schools of grunts and snappers are always present.

Currents: prevalently from south. It goes from moderate to very strong. Water temp: Dec - April: 74 - 78 / May - Nov: 68 - 72 degrees Fahrenheit Thermoclines: at 45 ft and sometimes also at 75 ft. 

You will feel the thermoclines at these two sites and you will see them before you even feel them!  It's as though a crystal clear river is visible just ahead...that's the thermocline.