Age rules and kids policy at MGM National Harbor
MGM National Harbor is a casino-centric, all-ages resort where the primary guest must be 21 or older to check in and to gamble; children may stay in rooms with an adult and are allowed at the seasonal outdoor pool. The on-site spa (The Spa & Salon) is reserved for guests 18 and older, and the property does not allow pets (service animals are welcome).
In this guide
Who can check in and gamble
MGM National Harbor requires the primary guest on a reservation to be at least 21 years old to check in. The same 21+ minimum applies to gambling on the casino floor.
A government-issued photo ID and a credit card (or authorization) are commonly required at check-in for incidentals. The property does not accept cash or debit cards for payment according to some listings.
- Minimum age to check in: 21
- Minimum age to gamble: 21
- Credit card authorization or deposit typically required at check-in
| Requirement | Age / Note |
|---|---|
| Check-in | 21+ |
| Casino gambling | 21+ |
| Primary guest ID at check-in | Government photo ID required |
Children and family access
Although MGM National Harbor is casino-centric and primarily caters to adults, children are allowed to stay in guest rooms when accompanied by a registered adult. The resort lists family-friendly amenities like in-room cribs and high chairs.
Children may use many public areas of the hotel and are specifically permitted at the seasonal outdoor rooftop pool during its open season.
- Children may stay in rooms with a registered adult
- In-room cribs and high chairs are available (property listings)
- Public spaces are accessible to families, but portions of the resort are adult-focused
| Area | Allowed for children? |
|---|---|
| Guest rooms (with adult) | Yes |
| Outdoor pool | Yes (seasonal) |
| Spa | No (under 18 not permitted) |
Pool and rooftop deck rules
MGM National Harbor operates a seasonal outdoor pool on a second-floor rooftop deck overlooking the Potomac River. The pool season typically runs from Memorial Day through Labor Day, though exact dates and daily hours can vary.
The pool is not restricted to adults only; children are permitted to swim and use the pool deck. The rooftop area includes lounge chairs, umbrellas, and private day pod cabanas with food and beverage service.
- Location: second-floor rooftop deck with river views
- Typical season: Memorial Day through Labor Day (verify dates with the resort)
- Children: allowed to swim; pool is family-accessible during the season
| Feature | Notes |
|---|---|
| Season | Typically Memorial Day–Labor Day |
| Daily hours | Varies by season and source (example listings: 10:00 AM–6:00 PM or 10:00 AM–8:00 PM) |
| Family access | Children allowed |
Spa age policy and access
The Spa & Salon at MGM National Harbor is an adults-only facility: guests under 18 are not permitted. The spa spans Floors 3 and 4 and offers treatment rooms, hydrotherapy, a Vichy room, and locker-room amenities.
Spa guests receive access to men's and women's locker rooms with showers, a relaxation lounge, an indoor whirlpool and sauna as part of a spa visit or treatment booking. Verify current spa hours before arrival, as published hours vary by source.
- Minimum age for spa access: 18 (guests under 18 are not permitted)
- Spa facilities include hydrotherapy, Vichy room, locker rooms, relaxation lounge
- Spa hours vary by listing; confirm with the resort or spa directly
| Spa feature | Detail |
|---|---|
| Location | Floors 3 & 4 of the Hotel Tower |
| Treatment rooms | 11 treatment rooms plus couples' suites |
| Guest age policy | 18+ only |
Fitness center and resort fee
Hotel guests receive access to the on-site fitness center; fitness access is included with the property's mandatory resort fee. Some booking listings show the fitness center as operating 24 hours, though hours may vary by source.
The resort fee is listed on some sites as a mandatory nightly charge that covers fitness center access, in-room bottled water, in-room coffee, and internet access. Check your booking confirmation for the exact fee and inclusions.
- Fitness center access included in resort fee
- Resort fee noted on some listings as USD 28.62 per night (verify at booking)
- Fitness center hours may be listed as 24-hour by some booking sites; confirm with the hotel
| What the resort fee may include | Examples from listings |
|---|---|
| Fitness center access | Included |
| In-room bottled water & coffee | Included |
| Internet access | Included |
Pets, service animals and other house rules
MGM National Harbor does not allow pets; only service animals are permitted and may stay without fee or documentation per property listings. If you travel with a service animal, the resort accepts them.
The hotel may require a refundable deposit at check-in for incidentals and may accept payment by major credit cards only (some listings note that cash and debit cards are not accepted). Parking options and fees vary by source — self and valet parking are offered for a daily fee.
- Pets: not allowed
- Service animals: welcome without fee
- Deposit: refundable incidental deposit commonly required (examples list USD 150/day)
- Parking: self and valet available for daily fees; height restrictions may apply
| Policy | Detail |
|---|---|
| Pets | Not allowed |
| Service animals | Allowed without fee |
| Incidentals deposit | Refundable deposit commonly required (example listings: USD 150/day) |
Rooms and family sleeping options
MGM National Harbor has multiple room types; standard guest options include Resort Room, Potomac Room, Capital Room, and Restore Capital Room. Each room type is offered with either 1 King Bed or 2 Queen Beds according to the property room descriptions.
Families traveling with children should request available in-room amenities like cribs when booking and confirm occupancy rules with the hotel. The resort also has suites and additional room counts listed across the hotel tower.
- Room names (as listed): Resort Room, Potomac Room, Capital Room, Restore Capital Room
- Bed configurations for these rooms: 1 King Bed or 2 Queen Beds (property listings)
- Request cribs/high chairs at booking if needed
| Room type | Bed options |
|---|---|
| Resort Room | 1 King Bed or 2 Queen Beds |
| Potomac Room | 1 King Bed or 2 Queen Beds |
| Capital Room | 1 King Bed or 2 Queen Beds |
