Blue Moon Whale Tail NecklaceBlue Moon Whale Tail Its 5: 02pm May 4th, 2017. Im looking out the window at a blue sky and blue sea. Im still waiting for a whale to breach, dive and frolic in the sea off of Portland Head Light. From where I sit I can see out to the horizon line where in the summer whale boats take tourists to see whales feeding during their migration to the north. Once in a blue moon Im sure one comes close to shore and while Im not watching all the time I know