Essex wildlife trust have some amazing activities that are just fab for the end of the holidays. If you have been to the beach at all, we really recommend that you visit their page and have a look.
One of our favourites is this bottle basking shark but you can also go rock pooling, head on a beach clean (make sure you wear gloves!), plan some eco crabbing and try out some of these ideas to keep the sea healthy (can be done away from the sea). We hope you enjoy them as much as we have!