Here are resources to choose from for this afternoon. Remember to take a walk and get some fresh air with your family. You might decide to follow your own ideas and find out about a sea creature of your own choice.
Watch part or all of the video above. It took four years to make the Blue Planet series of films and they are amazing. This one is all about the ocean . Your grown-up needs to register your email address to watch this on BBC IPlayer but it only takes a minute to register and it is free.
Find out about bottlenose dolphins and orcas.