
InterContinental Boston
Best for travelers who want downtown/Boston Harbor access, larger meeting and ballroom capacity, and an indoor heated lap pool included for guests.
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InterContinental Boston is a 5-star waterfront hotel on the Fort Point Channel with harbor access and big downtown event spaces; read this if you want a central, water-view Boston base with a hotel spa and indoor lap pool. The Charles Hotel is a refined 5-star property in Harvard Square, Cambridge; read this if you prefer a quieter, collegiate neighborhood with on-site dining and a full-service spa.
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Best for travelers who want downtown/Boston Harbor access, larger meeting and ballroom capacity, and an indoor heated lap pool included for guests.

Best for travelers who want a quieter Harvard Square location, free wired internet in rooms, and easy access to Harvard University and Cambridge attractions.
When InterContinental Boston wins: choose it for downtown waterfront views, larger event spaces and ballrooms, and a full-service spa with a 45-foot heated indoor lap pool that’s complimentary for guests.
When The Charles Hotel wins: choose it for a quieter stay in Harvard Square, three on-site restaurants and bars in a Cambridge setting, generous meeting space for mid-sized events, and complimentary wired internet in rooms.
Bottom line: both are five-star, refined hotels; pick InterContinental for waterfront scale, meetings, and a hotel pool, and pick The Charles Hotel for a Harvard Square location and a quieter, campus-adjacent Cambridge experience.
| Category | InterContinental Boston | The Charles Hotel |
|---|---|---|
| Overall vibe | Large waterfront luxury hotel with downtown energy and event focus | Refined, quieter Harvard Square luxury hotel with a campus-neighborhood feel |
| Location | 510 Atlantic Ave, Fort Point Channel / near South Station and Harborwalk | One Bennett Street, Harvard Square, Cambridge; steps from Harvard University |
| Size (rooms) | 424 rooms | 303 guestrooms |
| Minimum check-in age | 18 (primary guest) | 21 (primary guest) |
| Pool | 45-foot heated indoor lap pool (complimentary for guests) | Not published |
| Restaurants & bars | Multiple: Matria, Bar Fellini, Loyall Counting Room, Five-10 Waterfront (water views) | Three restaurants and 3 bars/lounges including Henrietta's Table; 24-hour room service available |
| Spa & wellness | Spa InterContinental (about 6,600 sq ft, six treatment rooms, steam rooms, 24-hour fitness) | Full-service spa with massages, body treatments, and facials; reservations required |
| Meeting & event space | Approx. 32,000 sq ft across multiple ballrooms and function rooms (up to ~1,200 guests) | Conference space ~17,997 sq ft with 18 meeting rooms (suitable for weddings, conferences) |
| Parking & EV | Valet parking only (hotel lists $65/day); EV charging available | Covered parking available; electric car charging station listed |
| Pets | Pets welcome under VIPaw program (fee; weight limit conflicting across sources) | Pet fee USD 75 per pet, per stay (service animals exempt) |
InterContinental Boston sits on the Fort Point Channel waterfront between the Financial District and Seaport, steps from the Harborwalk and adjacent to the Boston Tea Party Ships & Museum.
Choose InterContinental if you want central Boston/harbor access and easy connections to downtown attractions.
The Charles Hotel is in the heart of Harvard Square in Cambridge, a short walk to Harvard University and Cambridge cafés, shops, and cultural spots.
Choose The Charles Hotel if you prefer staying in Harvard Square with quick access to Cambridge neighborhoods and Harvard.
InterContinental Boston offers 424 rooms and a mix of view and club options across multiple categories and suites.
InterContinental is the larger property with more room categories and water-view options.
The Charles Hotel has 303 guestrooms with refrigerators and LCD TVs; down comforters and premium bedding are standard.
The Charles emphasizes classic, comfortable rooms and a full complement of suite choices in a Cambridge setting.
InterContinental Boston offers several on-site venues, including a new Northern Italian restaurant and multiple cocktail bars.
Choose InterContinental for waterfront dining and a broader variety of hotel bars and a speakeasy experience.
The Charles Hotel has three restaurants (including Henrietta’s Table) and three bars/lounges plus 24-hour room service.
Choose The Charles for dependable on-site dining tied to the Harvard Square neighborhood and 24-hour room service.
InterContinental Boston’s signature amenity is its indoor heated 45-foot lap pool within Spa InterContinental.
InterContinental’s indoor heated lap pool is a clear draw for guests who want on-site pool access year-round.
The Charles Hotel listing does not publish an on-site pool.
The Charles does not advertise a pool in the supplied facts; check directly if pool access is important to you.
InterContinental pairs Spa InterContinental with multiple bars and a speakeasy-style nightlife option on site.
InterContinental blends a full spa and on-site cocktail bars for a combined wellness-plus-evening experience.
The Charles Hotel offers a full-service spa plus bars and live events in a campus-neighborhood setting.
The Charles focuses on spa treatments and neighborhood nightlife rather than large on-site nightlife venues.

InterContinental Boston — waterfront location on Fort Point Channel with water-view dining and a water taxi dock.

The Charles Hotel — in the heart of Harvard Square, steps from Harvard University and Cambridge shops.

InterContinental Boston — a guest-accessible 45-foot heated indoor lap pool inside Spa InterContinental.

The Charles Hotel — refined, quieter setting in Cambridge with free wired internet and bicycles on site.
InterContinental Boston — it has roughly 32,000 sq ft of meeting and event space including large ballrooms; The Charles Hotel has substantial conference space (~17,997 sq ft) but is smaller overall.
InterContinental Boston has a 45-foot heated indoor lap pool included for guests; The Charles Hotel's supplied listing does not publish a pool.
The Charles Hotel — it sits in Harvard Square and is a short walk from the university.
Both properties operate as general-audience hotels; The Charles lists a minimum check-in age of 21 and InterContinental lists a minimum check-in age of 18 for the primary guest.
Explore how InterContinental Boston stacks up against other hotels nearby:
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