We stayed at the Marriott Residence Inn Sea World in June and it was a very short drive to Discovery Cove. In fact the day we went to Discovery Cove I saw a family that I had seen eating breakfast at the RI when we were walking to Discovery Cove, they were just walking up to the entrance of Discovery Cove as we were turning in to it. We had a studio room which was very spacious with 2 double beds plus a sleeper sofa and a kitchen area. The RI has a free breakfast buffett that is very nice too.
We LOVED Discovery Cove. Swimming with the dolphins was an aweseome experience for all 3 of us (DD was so thrilled) and the snorkel logoon and sting ray lagoon was great too and we must have floated around the lazy river at least 15 times, so relaxing! Have a great time!
Cheryl