Things to do in Kingston
Gananoque: 1000 Islands Cruise & Optional Boldt Castle Entry
What are the best things to do in Kingston?
Walk the limestone downtown and waterfront, tour Fort Henry, and take a Thousand Islands boat cruise from the Kingston waterfront — the cruise is the single activity most worth building a visit around.
Where Ontario’s history and the Thousand Islands meet
Kingston sits at the point where Lake Ontario narrows into the St. Lawrence River, and its position shaped nearly everything about the city — a limestone-built former capital of the Province of Canada, a former military stronghold guarding the entrance to the Rideau Canal, and now the gateway town for boat trips out into the Thousand Islands.
It’s about 2.5-3 hours east of Toronto by car via Highway 401, or a similar time by VIA Rail, and it works well both as a standalone weekend and as a stop en route to Ottawa, roughly two hours further along the same general corridor. It also makes a natural stop if you’re combining it with a broader look at the Thousand Islands day trip from Toronto rather than treating Kingston as an isolated destination.
| Where | Kingston, Ontario, ~2.5-3hrs east of Toronto |
| Cost | Boat cruise around $40-70 CAD/person; Fort Henry entry separate |
| Getting there | Car via Hwy 401 or VIA Rail, both roughly 2.5-3hrs |
| Time needed | Full weekend for downtown, Fort Henry, and a cruise |
| Best time | May-September for the fullest cruise schedule |
Downtown Kingston and the limestone waterfront
Kingston’s downtown core is built almost entirely from local limestone, giving the city a distinctive grey, weighty architecture that’s earned it the nickname “the Limestone City.” The waterfront along Ontario Street is walkable and lively in summer, with City Hall — a genuinely striking domed limestone building from the 1840s, when Kingston briefly served as the capital of the united Province of Canada — anchoring the harbour view. Princess Street, the main commercial strip, runs a few blocks inland and has the city’s densest concentration of restaurants, pubs, and shops, many catering to the large student population from Queen’s University.
Fort Henry
Fort Henry, a restored 19th-century British fortification on a hill overlooking the harbour, is Kingston’s best-known heritage attraction — costumed interpreters, cannon and musket demonstrations, and (in summer evenings) a Sunset Ceremony with drill performances and fireworks. It’s a genuinely well-run living-history site rather than a static museum, and worth two to three hours if you’re at all interested in military or colonial history.
The fort’s current form dates to the 1830s, built as part of a broader defensive network (alongside the Martello towers and the Rideau Canal itself) in response to lingering tension with the United States following the War of 1812. It’s now a UNESCO World Heritage Site as part of the wider Rideau Canal designation, and the guided interpretation does a genuinely good job explaining why 19th-century Britain considered this stretch of the St. Lawrence important enough to fortify so heavily. The Sunset Ceremony, held on select summer evenings, recreates 19th-century military drill and artillery demonstrations and typically draws the fort’s largest crowds of the season.
Cruising the Thousand Islands from Kingston
This is Kingston’s standout activity and the reason many visitors make the trip specifically. From the Kingston waterfront, boat cruises head out into the Thousand Islands archipelago — more than 1,800 islands scattered across the St. Lawrence River between Kingston and the New York state border, many topped with historic cottages and a handful with genuine castles. The most popular route includes an optional stop at Boldt Castle, an unfinished early-1900s mansion on Heart Island built (and then abandoned mid-construction) by a hotel magnate as a monument to his late wife — one of the more genuinely dramatic backstories of any Ontario-region attraction.
1000 Islands cruise with optional Boldt Castle entry — GananoqueNote that several operators run these cruises from nearby Gananoque rather than Kingston itself — both towns sit on the same stretch of river, and Gananoque is closer to the densest part of the islands, so check departure points carefully when booking. See the Thousand Islands day trip from Toronto guide for how the two towns compare as a base, and the Thousand Islands destination page for the wider region beyond the boat cruise itself.
The islands themselves range from tiny, single-tree outcrops (some so small they technically qualify as an island only if they support at least one living tree year-round, per a long-standing local rule of thumb) to substantial private estates, several of which remain in the same families that built them in the late 19th and early 20th centuries, when the Thousand Islands became a fashionable retreat for wealthy American and Canadian industrialists.
Queen’s University and the campus district
Queen’s University’s limestone campus buildings blend almost seamlessly with the rest of downtown Kingston, and the surrounding student neighborhood adds a livelier, younger energy to the city than its heritage-town reputation might suggest — particularly reflected in Kingston’s above-average density of pubs and casual restaurants for a city its size. The Grizzly Grill and the Aberdeen Street strip, known locally for its rowdy Homecoming weekend traditions, sit at the heart of the student district, while the university’s own Isabel Bader Centre for the Performing Arts hosts a genuinely strong program of concerts and theatre open to the public.
Kingston’s food scene
Princess Street and the surrounding blocks give Kingston a food scene that punches above its population, shaped by both the university’s demand for affordable, varied dining and the city’s growing reputation as a genuine culinary destination in its own right. Local specialties worth seeking out include fresh Great Lakes fish (particularly whitefish and pickerel) at waterfront restaurants, and a strong craft brewery presence that’s grown alongside the city’s broader food revival over the past decade. Kingston’s farmers’ market, one of the oldest continuously operating markets in Canada, runs Tuesday, Thursday, and Saturday mornings at Market Square behind City Hall.
Kingston Penitentiary tours
Kingston Penitentiary, a former maximum-security federal prison that operated for over 175 years before closing in 2013, now runs limited guided tours led largely by former correctional staff. It’s a genuinely unusual attraction — equal parts architecture, Canadian penal history, and unsettling atmosphere — and tours sell out well in advance during peak season, so book ahead if it’s a priority.
Kingston compared to other Ontario heritage towns
Kingston’s limestone architecture and layered military history give it a distinct character among Ontario’s day-trip destinations — closer in spirit to Ottawa’s government-and-heritage focus than to the more resort-driven towns further north, and a genuinely different kind of visit from a wine- or nature-focused trip to Prince Edward County, which sits roughly an hour west along the same general corridor.
Murney Tower and the Martello towers
Scattered around Kingston’s waterfront are four Martello towers — squat, thick-walled defensive structures built in the 1840s as part of the same border-anxiety era that produced Fort Henry and the Rideau Canal. Murney Tower, the most accessible of the four, sits in a small waterfront park and now houses a small museum on Kingston’s military history; it’s a much shorter visit than Fort Henry but a good complement if the fortification history interests you and you want the fuller picture of how thoroughly this stretch of the St. Lawrence was defended in the 19th century.
Kingston’s museums and galleries
Beyond the military history sites, Kingston has a genuinely strong small-museum scene for its size: the Agnes Etherington Art Centre on the Queen’s University campus houses a well-regarded permanent collection alongside rotating exhibitions, and the Marine Museum of the Great Lakes covers the region’s long shipbuilding and shipping history, housed partly in a former dry dock. Both work well as an add-on to a Fort Henry or downtown visit without requiring a full extra day.
City Park and Kingston’s green spaces
City Park, a large green space just north of downtown, hosts cricket matches on summer weekends — one of Kingston’s more distinctive local traditions, a legacy of the city’s British colonial-era institutions — along with walking paths and open lawns that make a pleasant break between museum visits. Lake Ontario Park, further along the waterfront, offers additional shoreline access and picnic space away from the busier downtown core.
Waterfront trails and getting on the water yourself
Beyond the boat cruises, Kingston’s waterfront supports kayak and paddleboard rentals for visitors who want a self-directed, lower-cost way to get on the water near the harbour rather than committing to a full Thousand Islands cruise. The Waterfront Trail, part of a much longer multi-use path system running along Lake Ontario’s north shore, passes directly through downtown Kingston and makes for a pleasant flat walk or bike ride connecting City Park, the downtown core, and the Fort Henry approach.
Practical notes
Kingston is compact enough that downtown, the waterfront, and Fort Henry are all walkable from a central hotel; a car becomes more useful if you’re planning to explore Gananoque or the wider Thousand Islands shoreline. VIA Rail connects Kingston directly to both Toronto and Ottawa, making it a workable stop on a longer rail-based itinerary between the two cities — see best day trips from Toronto by train for the full route options. Parking in the downtown core is metered and can be limited on summer weekends, so arriving early or using a hotel with dedicated parking simplifies a car-based visit considerably.
An evening option: fireworks and sunset cruises
Beyond the daytime Thousand Islands cruise, several operators run evening sailings timed around sunset or seasonal fireworks displays over the river — a genuinely different, more atmospheric way to see the islands than the standard daytime route, and worth considering if you’re staying overnight in Kingston rather than day-tripping.
Thousand Islands fireworks cruiseWeekend itinerary if you have two days
A well-paced two-day visit puts downtown, Murney Tower, and the museums on day one, saving Fort Henry (including the Sunset Ceremony if it’s running) and the Thousand Islands boat cruise for day two, when a full morning-to-afternoon block gives the cruise the unhurried time it deserves. Splitting the two big-ticket activities across separate days avoids the rushed, one-thing-after-another feeling that a single packed day tends to produce.
Frequently asked questions about things to do in Kingston
Is Kingston worth visiting as a day trip from Toronto?
It’s a long day (2.5-3 hours each way), so an overnight stay is preferable if you want to properly cover downtown, Fort Henry, and a boat cruise. See Kingston day trip from Toronto for a tightly planned single-day version.
Should I take a Thousand Islands cruise from Kingston or Gananoque?
Both work, but Gananoque sits closer to the densest cluster of islands and Boldt Castle, so some visitors prefer basing there for the cruise specifically while still visiting Kingston for its downtown and Fort Henry.
How long is the Thousand Islands boat cruise?
Most standard cruises from the Kingston/Gananoque area run 2.5-3 hours, with longer options available that include a stop and walking tour at Boldt Castle.
Is Fort Henry good for kids?
Yes — the cannon and musket demonstrations and costumed interpreters generally appeal to children, and the Sunset Ceremony in summer is a popular family evening activity.
Can I visit Kingston without a car?
Downtown, the waterfront, and Fort Henry are all reachable on foot or by local transit from the VIA Rail station. A car is more useful for reaching Gananoque or exploring further along the Thousand Islands shoreline.
What’s the best time of year to visit Kingston?
Late spring through early fall (May-September) covers the fullest boat cruise schedule, Fort Henry’s Sunset Ceremony, and the warmest weather for walking the waterfront.
Is Kingston a good base for exploring the wider Thousand Islands region?
Yes — Kingston offers more accommodation, dining, and museum options than the smaller Thousand Islands towns, making it a practical base for day trips to Gananoque and along the shoreline while still returning to a fuller range of amenities each evening.
Does Kingston Penitentiary require advance booking?
Yes — tours are limited in capacity and led by former correctional staff, and they sell out well ahead of peak season, so booking as early as possible is strongly recommended if visiting the prison is a priority.
Is there an evening option besides the daytime boat cruise?
Yes — several operators run sunset or fireworks cruises over the Thousand Islands in the evening, a more atmospheric alternative to the standard daytime route, worth considering for visitors staying overnight in Kingston.
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