My wife and I just returned from an April trip, we took a day off from the parks in the middle of the week.
We grabbed an ADR at Sanaa for around 2pm (they feed the animals in front of the restaurant at 3pm) had a great meal and watched all the animals while we were dinning. We then went outside and spent some leisurely time watching the animals outside as well. We then grabbed the bus over to HS and did a little resort hopping on the Skyliner, from HS to the resorts and over to EPCOT. We walked over to the Boardwalk, Y&BC and Swan and Dolphin, took the Friendship boats back over to EPCOT, rode the Skyline back to HS, caught a bus to the Poly had a Dole Whip. We then caught the boat over to MK where we grabbed another boat to WL. Did a quick tour of WL and then caught a bus to DS for our dinning reservations at Raglan Road. That pretty much took up the day and we checked out multiple resorts we had never seen before. The Skyliner was really enjoyable in the day time when it wasn't so busy.