Soft corals called sea pens, usually found at depth, and a blue cod appear in shallow waters in Long Sound reserve, where tannin-stained surface water blocks sunlight. Fragile marine ecosystems such as this are thriving in New Zealand due to federal protection. This picture was made at a depth of 23-meters, where no ambient light exists and deep-water animals (like sea pens) are tricked into emerging into shallower depths.