Minecraft wiki entry for Ocean, associated text: The warm ocean has an aquamarine water tone at the surface and generates next to deserts and badlands. Like the lukewarm ocean, it has a floor mainly made of sand, however no dirt, clay or gravel generate at shallower areas and if this biome generates above sea level, the surface is made of sand instead of grass blocks. Warm oceans feature coral reefs and numerous sea pickles, though kelp does not naturally generate here. Because of the height of the coral reef, warm oceans can appear more shallow than other oceans, though the actual ocean floor is no deeper. Tropical fish and pufferfish spawn here. This is also the only ocean temperature variant that can generate at deeper waters without needing a deep variant, and because of that monuments can't be found in this biome.