Divewith great white sharks at guadalupe island mexico depart from san diego california on our 85 foot vessel and spend 5 days on the water with great whites sharks orcas whales dolphin seals and turtles swimming underneath your feet isla guadalupe great whites are primarily transitional sub adults 12 16 feet in length are sleek fast and beautiful you will also encounter makos on very rare and very special occasions later in the season we encounter much larger sharks upwards to