Discovery Cove is a full day adventure with operating hours of 8:00 a.m. - 5:00 p.m. daily. Check-in begins as early as 7:15am to 8:30am If you’re participating in 3 or more add-on experiences during your visit to Discovery Cove, please plan to arrive by 7:00 a.m. for check-in and proper scheduling of your day.