However, because there are strong currents, sea swells, upwelling, cool waters, and sizeable marine creatures (such as whale sharks), diving here is not considered advisable for beginner or infrequent divers. Nearly all Galápagos diving spots are recommended only for intermediate to advanced divers.
However, some dive operators in Isabela Island have outings that take lower-skilled divers to nearby, less-challenging sites.
The Galápagos Islands are known worldwide for their superb snorkeling experiences. Many visitors come to the islands just for the chance to snorkel in the largest marine reserve in the Americas. It is the only tropical location where sea lions, tropical fish, and penguins meet.
During your expedition, there will most likely be one or two daily opportunities for you to snorkel from either a beach or a boat. Snorkel gear (fins, masks, and snorkels) is usually available on board for your use; however, if you have your own mask and snorkel (and fins, if you prefer your own), bring them with you to ensure better comfort and a proper fit. Since water temperatures in the Galápagos vary from 68 to 76 degrees Fahrenheit, some people like to wear wet suits while snorkeling. Most boats carry a variety of sizes. Check with your tour provider prior to your trip to inquire about gear availability.