Witness numerous endemic species; photograph a wide variety of wildlife that has grown astonishingly fearless in the absence of humans and large predators; discover fascinating geology—lunar-like lava fields, eroded volcanic cones, and active shield volcanoes; and snorkel and swim among playful sea lions as well as sea turtles, rays, and, with luck, Galápagos penguins.
Cofounder & Expedition Leader
A marine biologist and professional naturalist, Jack has spent much of the past two decades traveling on, and lecturing about, the world's oceans. Cofounder of Zegrahm Expeditions and research associate in the Section of Fishes at the Los Angeles County Museum of Natural History, Jack is a leading authority on the fishes and marine environments of the eastern tropical Pacific. For seven years he lived in the Galápagos, where he carried out extensive marine biological studies. In 1997, Stanford University Press published his comprehensive volume The Fishes of the Galápagos Islands, and he received his Ph.D. from Pacific Western University. A true adventurer and Fellow of The Explorers Club, Jack has led numerous expeditions to the remote corners of the world, participating in polar expeditions as a marine naturalist, photographer, and expedition leader, as well as working with noted scientists and explorers such as Jean-Michel Cousteau. Jack is an avid scuba diver, certified divemaster, and dedicated conservationist. In 2002 he was one of 57 scientists invited by the World Conservation Union (IUCN) to participate in a conference in Hanoi to discuss a strategy for the preservation of marine biodiversity. When not traveling, he manages his own photography business in the Florida Keys.
Jack's Blog Posts
Jack's Upcoming Expeditions
Wild GalapagosJuly 27 — August 5, 2018
Seychelles & Madagascar with Aldabra AtollOctober 20 — November 6, 2018
Expedition Leader, Michael Moore will be leading this journey through the Indian Ocean. Enjoy snorkeling and diving in the Seychelles; spend two full days exploring the Aldabra Atoll; and discover the unique flora and fauna of Madagascar.
Hidden Gems of the CaribbeanNovember 25 — December 6, 2018
On our journey through the lesser-known Eastern Caribbean, we’ll venture to ports inaccessible to larger ships, affording you the chance for dazzling snorkeling, hiking, bird-watching—glimpse the St. Vincent parrot—and explorations of historic forts and peaceful colonial plazas.
Bay of Bengal: Chennai to YangonJanuary 20 — February 5, 2019
Join a brand-new expedition that offers the perfect mix of India's, Bangladesh's, and Myanmar's cultural and natural treasures. Highlights include spending two full days exploring the UNESCO World Biosphere-designated Sundarbans Reserve Forest, and visiting the stunning Shwedagon Pagoda.
Best of Micronesia: Rabaul to PalauMarch 3 — March 20, 2019
Snorkel or dive nearly every day as you discover the western corner of Micronesia. You'll also meet friendly locals, who will greet you with traditional dances; search for island endemics and a multitude of seabirds; and tour the archaeological site of Nan Madol.
Papua New GuineaSeptember 20 — October 6, 2019
Highlights of our return to Papua New Guinea include snorkeling or diving among some of the most biodiverse waters in the world; meeting friendly Trobriand Islanders; and watching the spectacular fire dances of the Baining tribe.
Tahiti to Easter Island: Marquesas, Tuamotus & PitcairnsOctober 10 — October 29, 2019
Beyond the typical Polynesian paradise, one may delve deeper, to find aquamarine lagoons affording the world’s most dazzling snorkeling and diving, an intriguing Easter Island tour and the sky-piercing volcanoes of the Marquesas.