We do this every year! We go to WDW at least twice a year and USUALLY we do one park day total on average (e.g. 2 one-week visits per year, one of those visits will include a park day). We like After Hours events and our kids can stay awake for them and we haven't had any issues. Our kids have special needs and sensory processing is a big part of it. When we do the full days, we do get a
DAS pass.
Nowadays we stay at a Cabin at Fort Wilderness and use it as our "home base" to explore The World. Earlier on, we used to stay at Wyndham Bonnet Creek and do a lot of character meals at places like the Polynesian and The Contemporary so our kids got that sort of "fix" without us doing too many big park days.
We often do one Disney Springs day and one day just "resort hopping) but at the Fort alone there are so many things to do:
Pool with waterslide, pool without waterslide
Dog Park (Waggin’ Trails)
Lots of playgrounds
Tetherball courts
Internal buses/shuttles
Tri-Circle-D Ranch: Free to visit horses/see exhibits, listen to calliope, $8 Pony Rides for under 48 inches (no reservations necessary)
Archery Experience: Ages 7 and up, $45 pp/75 minute session
Horseback Trail rides: $55 pp/45 minute ride
(Must be at least 9 years old, over 48 inches and under 250 lbs)
Canoe/Kayak rental: $13 per hour, no reservations
Fishing: $8 pole rental, bait available at Bike Barn
Chip and Dale Singalong and campfire: free except s’mores materials
Movies under the stars: free
Watch fireworks/electrical water pageant from beach: free
Boat rides to/from Magic Kingdom (catch monorail from MK or CR to Epcot for Skyliner or take boat or monorail to Polynesian): Free
Pickleball, tennis, various sports equipment: Free if staying onsite
Bikes/Bike Barn: $ (includes helmets)
Golf Cart rental: ~$67/day
Wild animals: Deer, rabbits, turkeys, armadillos, owls, and more
Hoop-de-doo-revue: $$$, reservations required
Carriage/Sleigh Ride
Wagon Ride, 25 minutes, 6:00PM and 8:30PM Friday, Saturday, and Sunday evenings, $12 for 10+, $8 for 3 to 9 years