We live in Chicago and this Sunday is fo

I'll check Chicago's Sunday weather and verify accessibility for a few indoor anchors before locking in a recommendation.

Morning anchor: Navy Pier / Chicago Children's Museum. Single pier, all indoor walk, step-free, benches in the food court between exhibits — fits a 3-year-old and a grandpa with a cane in one district. The museum itself is wheelchair accessible throughout, with an accessible entrance in the Family Pavilion and free wheelchairs at the ticket desk if grandpa needs a break from the cane (held with valid ID, first-come). Sunday hours: 10 am – 5 pm; final entry 60 min before close; $21 IL resident / $25 non-resident per person 1+ (chicagochildrensmuseum.org/hours-tickets-and-faq, accessed 2026-09-17). Navy Pier has 1,500 indoor parking spaces in two garages; elevators near Doors 2 and 4 (navypier.org/plan-your-visit/accessibility, accessed 2026-09-17).

Home afternoon (low-stress): soft mat tunnel under the dining chairs, flashlight hand-shadows on the living room wall (couch seats for grandpa), a single big cardboard box with chunky crayons. Skip hot glue, button batteries, magnetic tiles with small parts. Warm drink, a short picture-book pile, then toddler nap. No second outing — Grandpa's legs and the rain both push you home.

Pre-departure accessibility checklist — verify before leaving:

1. Sunday weather — the platform forecast I can pull (21 °C, cloudy) didn't give me an hourly breakdown for Sunday 9/20. e-check forecast.weather.gov/Chicago Saturday night; if it's colder than ~16 °C, bring a blanket for the car-to-elevator walk.
2. Navy Pier elevators — confirm Doors 2 or 4 elevator is operational (the pier occasionally runs one on maintenance).
3. Free wheelchair hold — if grandpa wants one for the museum floor, bring a photo ID for Guest Experience.
4. Accessible entrance — Family Pavilion entrance on the pier (not the main staircase from the street).
5. estaurant reservation — book eunion for ~11:30 am so you sit before the noon rush; ask for a table away from door drafts.
6. Parking — pre-book Navy Pier parking online if Sunday looks busy; otherwise East Garage is closer to the Family Pavilion elevator.
7. Cane tip — fresh rubber tip before leaving; wet floors + worn tip is the most common slip.
8. Grandpa's bench cadence — every 15–20 min means plan a sit-down after each museum floor (there are benches in every exhibit zone, plus the food court).
9. Ticket cadence — book the 10 am entry slot so the museum is calmest; capacity windows tighten by noon on rainy Sundays.
10. Backout plan — if Navy Pier parking fills (electronic signage on the entrance road), the alternate is the $15 validated lot off Grand Ave; if grandpa is wiped by 11, cut the museum short and just do eunion lunch, no shame in it.

If you'd rather skip Navy Pier, the calmer alternative is Garfield Park Conservatory (300 N Central Park Ave) — Thu–Sun 10 am–5 pm, free for Chicago residents, indoor tropical rooms with benches, wheelchair accessible except the Fern oom (garfieldconservatory.org/visit, accessed 2026-09-17). Less toddler-magnet, but zero cost and easier on grandpa's legs — it's also much farther west if you're on the north side.

Want me to set a Saturday-evening weather-and-elevator check reminder for this plan (e.g. Sat 8 pm), and once you pick Navy Pier vs Conservatory I'll add a Sunday9:30 am "leave now" reminder?