We hope you can join us and enjoy the true inspiration of this wonderful earth we inhabit.
Call for our expedition schedules and space availability.

San Ignacio Lagoon
California Channel Islands

Dates for our 2017
San Ignacio Lagoon
Whale Encounters to be announced

Contact us for our four-day, four-night
2017 Channel Islands Expedition.

2017 Dates
To Be Announced
Please contact Doug at Summertree.org, or call Doug at 760-363-7229.

Click here for details.

2017 Dates
September 10 - 13
Please contact Doug at Summertree.org, or call Doug at 760-363-7229.

All-inclusive from Santa Barbara Harbor. Cost of the entire expedition is $950 per person. A $200 deposit is required to hold your reservation. $200 per person is tax-deductible for this expedition.Click here for details. Click here for downloadable application form.

The SummerTree Institute is a leader in natural history adventures.

Doug Thompson has led expeditions into Mexico with the now "friendly whales of San Ignacio Lagoon" for over twenty-five years and was one of the pioneers of close encounters with whales. These five-day expeditions remain one of the most successful examples of eco-tourism where the local people and the whales both benefit from our efforts.

We now offer unique expeditions to the exciting and beautiful California Channel Islands off the Southern California coastline. We conduct four-day, four-night voyages to explore the islands themselves and the rich diversity of marine life that surrounds them, including whales, dolphins, and seals.



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