If you happen to be back at VWL around 9:30pm, go down to the beach closest to VWL (next to the boat rental) and watch the Electric Water Pageant. It passes VWL around 9:35-ish. There are lots of lounge chairs on the beach. You can also see the higher fireworks from Wishes from that same area. Wishes will be at either 9pm or 10pm depending on the day of the week. Just an FYI if you do this, we did get a few bug bites while we were watching the EWP and Wishes.
You can rent surrey bikes or regular bikes and ride to Fort Wilderness and back. You can also do the same trail on foot. We did that last week and saw a group of five deer in the woods along the way. You can also rent a boat and cruise around Bay Lake and even go over to the MK and back.
Allow some time to check out the VWL lobby. There are many special details in that space. My favorites are the carved animals on the support posts around the center of the lobby. The WL lobby is also spectacular. It's a great place to hang out in the evening.
If you like to relax by the pool with an adult beverage, try a Lumberjack from the pool bar. It's WL/VWL's signature drink. It's not on the standardized drink menu but they will make one for you if you ask.
ETA: In general, just take the time to take a good look around. There are amazing details all around you starting with the architecture to design details like the light fixtures, the walkways and flooring, the pictures on the walls, even the elevator doors and the music in the background.