A small group of hardy explorers donned headlamps and warm winter garb as they set out to investigate the nightlife of Rosario Beach on the night of Dec. 13. A minus 2.4-foot tide exposed a real diversity of life that included flamboyant clown and chalk-lined nudibranchs, colorful shrimp in a variety of hues, and massive gumboot chitons that adhered to the bedrock. The group also found spiky red and green sea urchins, a large and lumpy California sea cucumber, and a weird little umbrella crab. With a bright full moon, it was a perfect night for tide pooling. The evening’s sense of adventure was heightened thanks to a very vocal great horned owl and a wondrous light show as Geminid meteors sporadically streaked across the sky.