April 22, 2021 marks the 51st anniversary of Earth Day, and the Roundhouse Aquarium is set to honor this milestone virtually with programs throughout the month of April. This is a 4-part series. Advanced registration is required. Please visit our website to reserve your spot. Saturday, April 10, 2021 – Phenomenal Seaweed 9:30 a.m. – 10:15 a.m. – Free Virtual Event Saturday, April 17, 2021 – Celebrating Whales and Dolphins: Fantastic Flukes and Fins 9:30 a.m. – 10:15 a.m. – Free Virtual Event Thursday, April 22, 2021 – The Ocean In Your Bathtub-Virtual Reading and Meet the Author 5:00 p.m.-5:45 p.m. – Free Virtual Event Saturday, April 24, 2021 – Amazing Tidepools 9:30 a.m. – 10:15 a.m. – Free Virtual Event