In the warm waters of the Golfo Dulce in southern Costa Rica, Pacific humpback whales are about to arrive on their annual migration to mate, give birth and socialize from July to October.
A spray of water erupted from the placid blue-green water a few hundred yards off the beach. The long, black and barnacled form of a mother humpback whale surfaced gracefully for air. Our little group standing on the concrete pier pointed excitedly at the huge whale. Then we gasped in delight as we suddenly
