National Dolphin Day is this Sunday, April 14th, and SeaWorld is inviting guests to celebrate by diving into unique up-close encounters and interactions with the ocean’s most playful ambassadors – and one of the most popular animals at the SeaWorld parks. In addition to daily educational sessions and presentations, guests can purchase special add-on experience packages for once-in-a-lifetime dolphin interactions. Plus, Silver, Gold and Platinum Pass Members can take advantage of discounts up to 20% off zoological experiences.