Aquamirae - Underwater worlds на версию [1.16.5]

Aquamirae - is a very large modification that will add an icy biome and make your underwater world much deeper and more extensive. The mod will add new mobs and bosses that you will be able to see both underwater and in the new icy biome. While swimming in the ocean, you may literally encounter an underwater civilization with its own features and dungeons.