A bright orange Nudibranch sea creature sits up high on the ocean substrate while fish move about

scuba scuba diving diver snorkeling underwater underwater video underwater cameraman underwater footage great barrier reef blue water tropical destination tropics animal protected species zoo marine biology marine conservation global warming coral coral bleaching travel destination marine park marine reserve animal encounter fish recreation pacific nature wildlife water activity ecosystem nudibranch creature sea slug gastropod animal behaviour flamboyant colourful blue planet aquarium collector fish keeper rinopores sea creatures ocean current sea sponges soft body stripes neon ocean substrate