Sea Change at the Biscayne Nature Center. Life-changing moments also happen when Miami's underprivileged children discover a whole new world at the Marjory Stoneman Douglas Biscayne Nature Center. Your pledge of support the Give Miami Day campaign will help fund scholarships for deserving children to attend our 4-week-long "Summer By the Sea" Marine Science Camp. Starting with the first exhilarating view of the Atlantic Ocean, these students will embark on a month-long exploration of nature's classroom that will change their horizons forever.