▲ The whale shark watching boats are public vessels, and all require shared boarding with an approx. capacity of 200 people. The group size refers only to the number of participants led by the guide, not the total boat capacity. Whale sharks are active filter feeders, primarily consuming plankton, krill, fish eggs, and small schooling fish such as sardines and anchovies. These sharks can process over 6,000 liters of water per hour through their specialized sieve-like gill rakers. Highly migratory, whale sharks traverse thousands of miles across tropical oceans to feed on seasonal food sources.