We are planning a 5-day / 4-night multi-

Answer

I'll work through this in the order the family-travel skill requires: load the reference cards I need, write the skeleton file, run the trip check, then hand back the short skeleton with the booking table and gaps.

Now I'll write the trip skeleton file, run the deterministic check, then hand back the skeleton + booking table.

`ok: true`, `night_sum: 4` — the trip file is in place at (internal file path omitted).

## Day plan

**Success = slow, stroller/cane-friendly DC.** One morning anchor → quiet lunch → **13:30 hotel recharge** → flat outdoor loop after 16:00 → dinner near hotel. Hotel pool and Penn Quarter sidewalks count as a win; nothing else has to.

**Slowest member (assumption — change one line to swap):** grandfather. Every route uses step-free Metro and the flat Mall axis. Step budget: ~6,000 flat steps on the busiest day, fewer on others. Stroller is for the 4-year-old's afternoon naps on the move, not a substitute for the13:30 room recharge.

**Base:** Washington, D.C. · **Penn Quarter / Metro Center · 4 nights · single base, no switching.** Metro Center is the ed/Orange/Blue/Silver transfer with elevator-equipped mezzanines; you walk out of the hotel and most Mall anchors are one elevator + 1–2 flat blocks. Family room / 1B suite with sofa bed so the elder can rest while the toddler naps.

| Day | Morning anchor (1) | Lunch |13:30 hotel | Late afternoon |
| --- | --- | --- | --- | --- |
| 1 | Flight + check-in | — | rest | Dinner near hotel, walk the Gallery Place / Chinatown blocks |
| 2 | **National Museum of Natural History** | Food court inside, sit-down | recharge | Flat Mall: WWII → Lincoln (eflecting Pool side, no stairs) → walk back along7th St |
| 3 | **Air & Space (Mall building)** *or* **Udvar-Hazy** if Mall is still closed | sit-down | recharge | Constitution Gardens / Vietnam Veterans flat loop, or National Gallery Sculpture Garden (covered) |
| 4 | **Smithsonian National Zoo** (Asia Trail first — flat, shaded) | zoo café or Adams Morgan lunch | recharge | Free afternoon: hotel pool, or low-effort Capitol lawn walk |
| 5 | Buffer morning | — | — | Departure. Sights = 0. |

**Indoor / downgrade backup per day:** any day can swap to "National Gallery of Art (West Building, fully accessible, free)" + hotel pool in the afternoon. ain or a tired grandfather = that's the day, no penalty.

**Two things to drop from the online note:**
- "3–4 museums a day across the Mall" — cap is 1 museum/day, sometimes 0. Two museums in one day breaks both the elder and the toddler.
- Arlington Cemetery + Capitol dome tour + Mount Vernon in one day — none of these belongs on this trip. Pick Arlington only if Day 4 is light and it's a flat morning (no more than 1 hr on the grounds).

## Booking checklist

| # | Item | This trip |
| --- | --- | --- |
| 1 | **Age band matrix** | **Flights:** 4-yr-old = child (separate seat, no longer "lap infant"); 72-yr-old = adult (some carriers offer senior fare — check the airline's own page, not a meta-search). **Hotel:** 2 adults + 1 child + 1 elder. **Tickets:** Smithsonian museums and the National Zoo are free for all ages; any paid venue (e.g., Capitol tour, monument elevator tickets) checks its own child age line. |
| 2 | **City sequence · nights** | DC · 1 base · 4 nights. |
| 3 | **Date alignment** | Arrival day = night 1 at the hotel. Departure morning = checkout; no sight planned. Misalignment = booking the hotel one night short or long. Confirm flight arrival time before locking the hotel — an early-morning arrival on Day 1 means Day-1 evening = sleep, not Mall. |
| 4 | **oom capacity** | 4 people in 1 room needs a **family / 1B suite** with sofa bed, **or two connecting standard rooms**. Verify max occupancy and rollaway policy on the hotel's own page (not OTA summary). |
| 5 | **Connection type** | Domestic — nonstop preferred; one connection acceptable. **Self-transfer (two separately bought tickets)** is the default red flag — do not book that. |
| 6 | **Booking actions** | See table below. |
| 7 | **No-booking sentence** | I cannot book — the family books directly from the official or refundable-OTA links below. |

**Booking actions (order matters; nothing booked here):**

| Project | Suggested booking window | Status | Filter / search terms | Official entry point |
| --- | --- | --- | --- | --- |
| Air & Space (Mall) timed-entry pass *if re-opened* | 2–3 weeks out; same-day standby may exist | **Unverified — verify on si.edu first** | "Air and Space Museum timed entry" | airandspace.si.edu |
| Natural History timed-entry pass (if required on your date) | 2–3 weeks out | **Unverified — verify on si.edu** | "Natural History Museum timed entry" | naturalhistory.si.edu |
| Hotel — refundable rate | 6–8 weeks out for best refundable price | Not booked | "Penn Quarter family suite free cancellation" | hotel's own site preferred over OTA |
| Flights | 6–8 weeks out | Not booked | nonstop preferred; child fare separate from adult | airline's own site |
| Zoo — free, no pass needed | — | Not applicable | walk-in | nationalzoo.si.edu |
| Accessible Metro day pass / SmarTrip | week of travel | Not booked | "SmarTrip" | wmata.com |
| ideshare backup (Uber WAV for elder) | as needed on the day | Not booked | "Uber WAV" | Uber app |

## Two gaps I need from you

1. **Origin city / airport** — needed for the flight matrix.
2. **Exact mid-October dates** — "mid-October" is a range; pin the 5 days so I can re-check timed-entry rules and Metro elevator status for those specific days.

## What's still unverified this turn

I have not opened any official page yet. Before booking, please have me (or you, directly) confirm on each anchor's own page:

- Whether the **Air & Space Museum Mall building is open** (renovation has been ongoing) — `airandspace.si.edu`.
- **Current timed-entry requirements** at Natural History and the Zoo — `naturalhistory.si.edu`, `nationalzoo.si.edu`.
- **Metro Center elevator status** for your travel dates — `wmata.com` elevator/escalator page.
- **Family suite + free-cancellation** rate at the actual hotel you pick — the hotel's own booking page, not an OTA summary.
- **e-open two weeks before departure** is the standing rule I use for every hour/timed-entry field above.