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KUSA - Talk about your close encounter. Some friendly California Gray Whales greeted delighted boaters off the coast of southern California.

The adult whales, which are estimated to be about 45 to 50 feet long, came right up toa 15-foot fishing boat. One of the whales even rubbed up against the engine.

Videoof the encounterwas shot by a whale watching tour group. They say the whales displayed this friendly behavior for several hours before finally moving away.