Peninsula Valdes, Argentina
"The shores and waters around the Peninsula is a special place for marine mammals. A population of southern right whales uses the protected waters of for mating and calving. The southern elephant seal has its most northern colony here. It reaches peak numbers of over 1,000 individuals and is the only colony in the world reported to be on the increase." — unesco.org
Another site dedicated to UNESCO! How awesome!
worldheritagesites: Orca Lunch Time, Península Valdés - Argentina