We are currently uploading the dates for our 2015 season. We will have a winter trip, a spring trip, and this year two July trips. July was when we found the beauty below, and we think that more time out there at this time of year wil be good. The winter trip is currently up, very soon I will have the rest of the dates – Alvaro.

Salvin's Albatross CA AJ5


Pay below with PayPal or e-mail us – alvaro@alvarosadventures.com; 650-504-7779

Trips to the Farallon Islands are on a different page. Most of our 2013and 14 trips sold out, so book early, reserve with an e-mail, or secure current price by booking today. Thank you all for your continued interest and support of our trips – we really appreciate it!!


NO FUEL SURCHARGES EVER. No surprises at the dock. Reserve or pay with Credit Card today to secure current price! We try to keep prices as economical as possible, and the quality as high as possible.


Feb 21, 2015Winter Half Moon Bay Pelagic. Winter is different, and that is why we want to be out there. This season we are seeing a huge flight of Ancient Murrelets, as well as Marbled, numbers of Black-legged Kittiwakes are building as of Dec 14 and it is always the best time for Short-tailed Shearwater, Northern Fulmar and we are still seeing Black-vented Shearwater in Dec so it should be diverse! Out of Half Moon Bay. $130

SOLD OUT – CONTACT  alvaro@alvarosadventures.com IN CASE A SPACE OPENS.

Previous 2014 trips – some superb stuff was seen:

May 4, 2014 -Magic of spring seabird migration. See Spring Pelagic Results

NEW!! June 13, 2014 – Hatteras!!! Yes, Hatteras, North Carolina. Alvaro in collaboration with Brian Patteson on the Stormy Petrel II, looking for the birds of the Gulf Stream. Hatteras, North Carolina. $165

NEW!! June 14, 2014 – Hatteras, North Carolina. Birding the Gulf Stream, second day in a row, to make the trip down worth your while. Hatteras, North Carolina. $165

July 26, 2014Pioneer Canyon. Prime time for Cook’s Petrel. Out of Half Moon Bay. $130   SOLD OUT – CONTACT US IN CASE A SPACE OPENS UP.

Aug 16, 2014Offshore Seabirds of San Francisco. County Birding and last year a Hawaiian Petrel showed up! Out of Half Moon Bay. $130 SOLD OUT – CONTACT US IN CASE A SPACE OPENS UP.

Aug  22 – Half Moon Bay pelagic. A great time for storm petrels during the last few years. Combine with Monterey trip on Aug 23d. Out of Half Moon Bay. $130

Aug 23 - Monterey Bay.  A great time to see jaegers, including Long-tailed, Arctic Tern and the more expected seabirds. Combine with Half Moon Bay pelagic on Aug 22nd. Out of Monterey. $130

 Sept 5, 2014Monterey Bay. Seabird diversity galore. Coming from a distance? Combine with Sept 6 trip for two in a row! Out of Monterey Bay. $130 Trip report: 2014 Sept 5 Monterey Bay

Sept 6, 2014. Offshore Seabirds of San Mateo. Heading southwest out of Half Moon Bay, where it was HOT in 2012. Out of Half Moon Bay. $130  SOLD OUT – CONTACT US IN CASE A SPACE OPENS UP. Trip report: 2014 Sept 6 San Mateo County Pelagic

Sept 13, 2014. Classic Monterey Pelagic. Deep water closer to shore, whales and more. Combine with Sept 14 trip. Out of Monterey. $130

Sept 14, 2014Classic Half Moon Bay Pelagic. We go where the action has been, chase the temperature breaks, and food rich areas. Coming from a distance, combine with Sept 13 trip for two in a row! Out of Half Moon Bay. $130 SOLD OUT – CONTACT US IN CASE A SPACE OPENS UP.


Black-footed Albatross

The Black-footed Albatross is the most common albatross in California, it breeds on the NW Hawaiian Islands and commutes to feed off the California Coast.

Pelagic birding is amongst the most exciting birding you can do, one never knows what is that next bird that will fly by the boat, or land behind the stern! It could be a lifer, it could be something that is just great looking, it could be an absolute rarity, hey it could even be a whale! Offshore birding can be frustrating too, the boat moves, it can be cold, and the day is long. So we strive to make it as enjoyable as possible. We try to make sure you get good information and keep pointing out even the common species until you have seen them and know what they are. Logistics on a boat can make it tough, but we will try hard to make sure you are satisfied. We can’t promise rare birds but we will sure make an attempt to find them, and the regular cast of characters out there is more than enough to keep a birder happy! Half Moon Bay had been forgotten as a birding port until Alvaro and gang went out in 2009. On those trips we found Laysan Albatrosses (we know now that it is a rather regular rare bird out of Half Moon Bay) as well as a gorgeous and satellite tagged Short-tailed Albatross (endangered species from Japan), and California’s first and North America’s second White-chinned Petrel! The latter was specially fun as it is a bird Alvaro sees in the hundreds on yearly trips to Chile, it was like seeing an old friend but out of context.

Buller's Shearwater

The Buller’s Shearwater is among the most elegant shearwaters in flight, and most boldly patterned.

The Birds – These are amongst the richest ocean waters anywhere on the planet, and that is not overstating it. The pelagic birds we may see include local breeders, Antarctic breeders, Arctic breeders, New Zealand or Chilean breeders, even Hawaiian species can show up. It is an incredible diversity of seabirds that venture to California in summer and fall to feast on the food in these waters. Half Moon Bay is a great place to see common species like Common Murre, Rhinoceros Auklet, Sooty Shearwater, Pink-footed Shearwater, and Cassin’s Auklet to name a few. At the continental shelf break we have had great luck seeing many Black-footed Albatross, and sometimes even the smaller and rarer (in California) Laysan Albatross. August is a good time for Arctic migrants such as Red-necked Phalarope, Arctic Tern, all three jaegers including the possibility for good numbers of Long-tailed Jaegers, as well as the awesome Sabine’s Gull. Slightly later in the season the

Pink-footed Shearwater

Pink-footed Shearwaters breed on two islands off Chile, then they fly half way around the globe to “winter” during our summer in California.

storm petrel flocks may gather and if we can find them, then Ashy Storm-Petrel will be the most common, with Black Storm-Petrel next. There could also be a smattering of less common species including the Fork-tailed Storm-Petrel, Wilson’s Storm-Petrel and Least in warm water years, even Leach’s although it tends to stay far offshore. Shearwater diversity increases in September into early October, then the two common species may be joined by Buller’s, Black-vented (warmer water years), Flesh-footed (rarer), and Short-tailed (late in season). The Manx Shearwater has been seen on many occasions in San Mateo County and could show up on a boat trip. Of course anything is possible, as we have proved in the past. Cook’s Petrels have shown up in July – August in county waters and due to conservation efforts in their native New Zealand we may have greater numbers and therefore greater chances in years to come.

Blue Whale

The Blue Whale – largest animal that has ever lived.

Mammals and other creatures - In fall the most common whale in these waters is the Humpback, however the Blue Whale has been present in the last few years and it shows up when the krill populations are good. Harbor Porpoise and even Bottlenose Dolphin are possible close to the coast, while offshore the Pacific White-sided, Northern Right Whale dolphins are found along with the Dall’s Porpoise and Risso’s Dolphin. California Sea Lions are out there, and sometimes the fine featured Northern Fur Seal as well. Blue Sharks might be seen, as well as the amazing “Mola mola” or Ocean Sunfish among others. San Mateo and San Francisco Waters and now Monterey!!- Since many locals are very keen on the county in which they see their birds, we want to keep the county birders happy. So we have dedicated trips that stay largely or entirely in waters of either San Mateo or San Francisco waters. If you don’t care about counties, either one of these trips will work for you. Both have great birds and great opportunities for unusual things as well as the common birds. As of 2012 we added a Monterey departure – and we are expecting to do more of these in the future!

Pomarine Jaeger

The biggest of the jaegers, the Pomarine, which is a hunter of rodents during its Arctic breeding season!

Boats and logistics – The boats we use are Coast Guard Certified with all of the necessary safety equipment to carry birders into the deep water. They have a large cabin area that we use mainly to store gear, although you can stay in here to warm up, nap, or catch up with friends out of the wind. The real action is outside where several guides will be out there helping to spot and point out birds for all to see. Before each trip we review safety on board the boat, as well as birding techniques and protocol to make the best of your day out. Our routes will vary depending on the trip, but we motor out to the edge of the continental shelf where the underwater topography drops off steeply and where we arrive at real deep water. Our strategy then will depend on the day and conditions, we may choose to go farther out into deeper water and if time permits even visit offshore canyons and seamounts, or we may look for storm petrel flocks, water temperature breaks or simply ride along the shelf to see what is out there. If commercial boats are fishing and attracting birds, we will snoop around to see what is following them. Whales are good to find, as they are of course amazing to look at, but also are where the bird food is! Many a good bird has been found while looking at whales.

White-chinned Petrel

This was California’s first White-chinned Petrel, a visitor from the subantarctic which we found several years back! Will there be more? Come and join us to find out.


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