Instruct: Classify the given Amazon review as either positive or negative.
Query: Astounding

Excellent. Beautiful, entertaining and educational. Comprehensive. From tide pools to the bottom of the ocean, from the Arctic and Antarctic to tropical reefs, from tiny algae and plankton to crabs, turtles, sharks, whales, sea birds and everything in between. Many things I had never seen before. The best documentary I have ever watched, even with a steady diet of OPB and the Nature channel. Family also loved it. PG-13 in a few places.