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Port Discovery

35 Market Pl Baltimore, MD 21202

Activity Indoor $$

The basics

Address
35 Market Pl Baltimore, MD 21202
Type
Activity
Setting
Indoor
Price
$$

Quick facts

Stroller
Yes
Wheelchair
Yes
Nursing room
Yes
Changing table
Yes
Noise
Loud
Sensory load
High
Rainy-day OK Hot-day OK Cold-day OK

Overview

Three floors of hands-on play in the historic Fish Market building on the east edge of the Inner Harbor: the three-story SkyClimber climbing structure that anchors the lobby, a soaked-to-the-elbows Wonders of Water gallery, the Tot Trails toddler zone built around Maryland landscapes, the Royal Farms convenience-store role-play, Tiny's Diner, and the Adventure Expeditions Egyptian tomb on the upper floors. Phase 1 of a $17.5 million renovation opened October 25, 2025: Galactic Builders (rocket-launching, rover-driving, parachute-testing on the third floor) and SKIES (a deliberately calm, low-stimulation room with reading nooks, blanket forts, and tactile walls). A teaching kitchen and food-market exhibit are still on the slate for later phases.

The museum is explicitly designed for birth through age 10. Sweet spot is 2 through 8 — toddlers live in Tot Trails and Wonders of Water, 4–8s spend the day on SkyClimber and in the role-play exhibits, 9–10s skew toward Galactic Builders. Skip it once your kids are 11+. There is no upper-floor exhibit that holds tweens for long, and the space gets loud.

What to know before you go

  • Hours: Closed Tuesday and Wednesday year-round. Monday 9 a.m.–3 p.m., Thursday 10 a.m.–3 p.m., Friday–Saturday 10 a.m.–5 p.m., Sunday 11 a.m.–5 p.m. Summer hours expand — confirm on the official visit page before driving.
  • Cost: $24.95 per person for non-members. Children under 1 are free. Active, retired, and veteran military are free with ID. Members are free but must reserve a ticket.
  • Tickets: Buy online in advance. Walk-up tickets exist but are not guaranteed and routinely sell out on weekends, rainy days, and school breaks. Tickets are non-transferable and non-refundable. An adult must accompany every child — solo adults aren't admitted.
  • Re-entry: Allowed all day with your wristband. A walk to Harborplace for lunch is a normal play.
  • Discounts: PlayMakers charges $5 per person for Maryland EBT/WIC cardholders (up to 5 tickets per card, photo ID required). ACM reciprocal — Family Plus or Contributing Family members get 50% off admission for up to 6 people at 120+ participating children's museums nationwide.
  • Parking: Harbor Park Garage at 55 Market Place is next door and validates to $15 flat when you ask the front desk for a validation ticket — or pre-pay $15 online (valid 90 days). The discount runs from 1 hour before open to 1 hour after close on regular operating days. Spring break and holidays are excluded — full garage rate applies. Forget to ask at the desk and you'll pay full price at the gate.
  • Transit alternative: The Shot Tower/Market Place Metro Subway station is across the street. The free Charm City Circulator Orange and Green routes both stop nearby, and the Harborplace water taxi is a 5-minute walk.
  • Food: Outside food and drink are welcome in the designated eating area (with microwaves but no fridges) and not allowed on exhibit floors. No on-site café — vending only. Several Inner Harbor restaurants offer Port Discovery guest discounts; ask at the desk for the current list.
  • Strollers: Welcome throughout the building, but park them outside Tot Trails and Wonders of Water — there's self-service stroller parking on the first floor and outside both exhibits.
  • Coat room and lockers: Free coat-hanging area and a limited number of free lockers on Level 1. Stored at your own risk.
  • Restrooms and nursing: Family-friendly restrooms on every floor. Dedicated nursing room on the 2nd floor.
  • Accessibility: Fully wheelchair-accessible building. KultureCity Sensory Inclusive certified — sensory bags with noise-canceling headphones, fidget tools, and Communication Cards available at the front desk, plus a downloadable Social Story.
  • What to bring: A full change of clothes (Wonders of Water is a soaker), socks for SkyClimber (required, no exceptions), a packed lunch, and your parking ticket so the desk can validate it.

Tips for families

  • Always ask for the parking validation at the front desk. It's $15 flat with the validation and easily $25–$35 without it. The desk doesn't volunteer it — you have to ask. The single most common visitor mistake.
  • Buy tickets online before you leave the house. Walk-up admission is capped and the museum does sell out on weekends and rainy days. The line at the door also moves slower than the pre-booked line.
  • Hit Wonders of Water last, not first. Kids end up wet from the elbows down — sometimes head to toe. Save it for the last 30–45 minutes so you're not dragging soaked, cold kids through three more floors of exhibits. Bring the change of clothes; pack a Ziploc for the wet stuff.
  • Pack socks for SkyClimber. Bare feet aren't allowed and shoes aren't allowed — it's socks-only. The desk doesn't reliably stock loaners.
  • Tot Trails first if you have a kid under 4. It's the most age-segregated space in the building and gets crowded by mid-morning on weekends. Park the stroller outside.
  • Pack a picnic. There's no on-site café, only vending. The eating area has microwaves. Re-entry on a wristband means a walk to Harborplace for sit-down lunch is realistic if you'd rather.
  • Galactic Builders is the new must-do for 6–10s. Rocket launches, rover driving, parachute testing — it opened October 2025 and it's the strongest STEM exhibit in the building. Plan 45 minutes minimum.
  • SKIES is the calm-down room. Low light, low stimulation, blanket forts, reading nooks. Use it as a reset when your kid is melting down — works even if you weren't planning a sensory break.
  • Plan for 3–4 hours. A typical family does Tot Trails or SkyClimber, two role-play exhibits (Royal Farms and Tiny's Diner are the favorites), one upper-floor adventure exhibit, Galactic Builders, and Wonders of Water at the end. Full day works only if you bring lunch and use re-entry.
  • Skip Sundays at midday. The 11 a.m. open compresses the entire weekend rush into a 6-hour window. Saturday at 10 a.m. is meaningfully calmer than Sunday at 1 p.m.
  • Borrow a sensory bag even if you didn't think you needed one. Headphones especially — the SkyClimber atrium echoes badly when the lobby is full.
  • Membership pays for itself in two visits. A Family for 4 membership runs you about the cost of two paid visits, includes ACM reciprocal at the Family Plus tier, and skips the daily ticket-cap risk.

Best time to visit

  • Time of day: Thursday and Friday mornings at 10 a.m. open are the calmest windows of the week. Saturday at open is fine; Sunday at midday is the worst. The museum is closed Tuesday and Wednesday.
  • Day of week: Monday 9–3 is the locals-and-homeschoolers crowd — pleasant. Thursday 10–3 is similar. Field trips hit Thursday and Friday mornings during the school year, mostly K–2 groups, mostly cleared out by lunch.
  • Season: Winter and spring break weeks are the busiest of the year. Mid-September through early November and mid-January through mid-February are the quietest weekday windows. The new Galactic Builders and SKIES exhibits opened in October 2025, so 2026 is a stronger year to visit than the few before it.
  • Weather contingency: This is a top-tier rainy-day backup for the under-10 crowd, which is also why it fills fast on rainy weekends. If the forecast turns wet, buy your ticket the night before — they'll be gone by Saturday morning.

FAQs

Is there parking? Yes — Harbor Park Garage at 55 Market Place is next door and validates to $15 flat when you ask the front desk for a validation ticket. The discount excludes spring break and major holidays. Skip the meters on Pratt and Lombard; they're aggressively ticketed.

How long should we plan for? Three to four hours for a typical visit. Full day works if you pack a lunch and use the wristband for re-entry.

What ages is this best for? Birth through 10, with the sweet spot at 2 through 8. Tot Trails is built specifically for under-3s. Tweens 11+ usually find it babyish — better Inner Harbor options exist for that crowd.

Can I bring my own food? Yes, in the designated eating area on Level 1. Microwaves are available; no refrigerators. Outside food is not allowed on exhibit floors. There's no on-site café, only vending.

Do I need a reservation? Strongly recommended. Walk-up admission exists but is capped and routinely sells out on weekends, rainy days, and school breaks. Tickets are non-transferable and non-refundable.

Is it stroller-friendly? Yes throughout the building, with elevators between all three floors. Park strollers outside Tot Trails and Wonders of Water — they're not allowed inside those two exhibits.

Is there a place to nurse or change a baby? Yes — a dedicated nursing room on the 2nd floor and family-friendly restrooms on every floor. Tot Trails has a built-in nursing station as well.

Are there sensory-friendly options? Yes. The museum is KultureCity Sensory Inclusive certified, with sensory bags (noise-canceling headphones, fidgets, Communication Cards) available at the front desk. Sensory Friendly Sundays run the 3rd Sunday of every month, 9–11 a.m. (paused in summer) — limited capacity, reduced sound and lighting, dedicated quiet zone, pre-registration required, no proof of qualification needed.

Is there a discount for SNAP/WIC families? Yes — PlayMakers charges $5 per person for Maryland EBT/WIC cardholders, up to 5 tickets per card, with a photo ID at the desk.

Is it good in the rain? Yes — the entire museum is indoor and climate-controlled. That's also why rainy weekends sell out. Buy your ticket the night before.

Can adults visit without a child? No. An adult must be accompanying a child — solo adult admission isn't permitted.

Helpful links

Operational details verified May 2026. Hours and prices drift — confirm on the official site before you drive.

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