High water levels at Thousand Islands National Park 

Updates: openings and closures

Parks Canada staff has been hard at work to ensure Thousand Islands National Park will be able to provide opportunities for Canadians to visit the park as the Canada 150 celebration season begins. With water levels on the St. Lawrence River approximately 3 feet higher than normal, some park services continue to be affected by the rain and flooding that have impacted Ontario and Québec.

Public safety is a priority for Parks Canada. Although Thousand Islands National Park is opening as many areas as possible, access to some facilities must remained closed to visitors. Parks Canada is responding as required to changing conditions and re-opening areas as soon as it becomes safe to do so.  

High water can be dangerous and we encourage all members of the public to be careful and vigilant around the edge of the river, where there may be hidden hazards and strong currents, and to take extra care looking out for possible debris in the water and changing river conditions. The use of closed docks is prohibited as it is unsafe and can cause further damage to the dock and to vessels. 

Travellers should review the list of services and facilities available here prior to travel. Parks Canada is reviewing and updating information regularly. Visitors can also follow current park conditions on Facebook, or on Twitter @TInationalpark

For more information, please contact Thousand Islands National Park at 613-923-5261, or by email at ont-ti@pc.gc.ca

Thousand Islands National Park facility status

Updated July 25, 2017, 1:30 p.m.


Jones Creek Trails
Open: Parking lot, Wolf Trail, Hawk Loop, Bear Loop, Heron Loop, Turtle Loop, Eel Loop, composting toilet, Mud Creek boardwalk
Closed: Snipe Loop, Deer Trail, Beaver Loop [permanent closure]

Landon Bay
Open: Trails (most).  Facility under lease to third party operator.
Closed: Bay Trail


Mallorytown Landing
Open: Visitor centre, playground, parking lot, picnic area (partial), dockside picnic shelter, historic picnic shelter, red chairs, composting toilet, oTENTiks (3A, 3B, 3C, 3D, 3E), Smokey Fire Trail, Six Nations Trail, one floating dock, paddle landing site, garbage and recycling

Note:  Some walking paths and trails have been temporarily re-routed to avoid flooded areas. Trails and picnic areas are unseasonably wet and muddy.

Closed: Boat launch, two floating docks, picnic area (partial)


Note:  New yellow and blue lines will be in place on some docks during high water conditions.  Yellow lines are for the use of national park and emergency vessels only and may not be used by other boaters at any time.  Blue lines on docks are for camping and oTENTik permit holders only. Docking fees are NOT included in camping and oTENTik fees and must be purchased on arrival at the island. (Exception: docking is included with oTENTik permit only on McDonald Island). 

Entry and travel onto closed islands in Thousand Islands National Park is prohibited, with the exception of staff working to preserve the island and its facilities.  The closures are by order of the Superintendent of Thousand Islands National Park, pursuant to section 7(1) of the National Parks General Regulations. The island closures are for the safety and protection of the public due to higher than normal water levels in the area.

Adelaide Island
Open: Mooring buoys.  No island access permitted. Park staff will collect fees.
Closed: All facilities on island (crib dock, trails, composting toilet, trail, picnic shelter).  No island access permitted.

Aubrey Island
Open: East floating dock (#75), bay floating dock (#15), trails (partial), campsites, picnic shelters, composting toilets, paddle landing site, firewood
Closed: Bay crib dock, north floating dock, west crib dock, trails (partial)

Beau Rivage Island
Open: West L-shaped floating dock (#29), north bay floating docks, trails (partial), campsites, picnic shelters, composting toilets, firewood, garbage and recycling, red chairs 
Closed: West service dock, south centre floating docks (#10), east floating dock (camping dock), northeast floating docks, north floating dock (#78), northwest floating dock, paddle landing site, trails (between the two parts of the island).

Camelot Island
Open: South floating dock (#15, blue line and yellow line only), trails, campsites, paddle landing site, composting toilets, firewood (location changed), picnic shelter, red chairs, south mooring buoys.  
Closed: Crib dock, north floating dock (#1), dinghy ramps, north mooring buoys.

Cedar Island
Open: West dock (#2), trails, campsites, picnic shelter, firewood, composting toilet, fire pit
Closed: East floating docks (#1)

Constance Island - CLOSED
Open: None
Closed: All facilities (north dock, southwest dock (#1), south central dock, southeast dock, picnic shelter, composting toilet, paddle landing site, trails). No island access permitted.

Endymion Island
Open: 5 mooring buoys, main floating dock, composting toilet, emergency dock (#1)
Closed: Crib dock (#59), dinghy ramp, 3 mooring buoys

Georgina Island
Open: Northwest floating dock, composting toilet (west), trails (west)
Closed:  Northwest crib dock (#200), beaver dam (southwest) floating dock, beaver dam (southwest) crib dock (#50), northeast floating dock (#260), southeast floating dock (T-dock), firewood, campsites, picnic shelters, composting toilet (east), fire pits, paddle landing site, trails (east).   

Grenadier Island (Central)
Open: Floating dock (#64), garbage & recycling, trails (very wet), campsites, washrooms, fire pits, firewood, picnic shelters, ice sales 

Note:  Conditions in many areas are unseasonably wet (e.g., trails, picnic areas, campsites).  Campsites are open, but are very wet and may not be suitable for all tents.

Closed: West crib dock

Grenadier Island (East)
Open: Floating dock (#90), campsites, composting toilet, paddle landing site, firewood, firepit
Closed: Crib dock

Grenadier Island (North) - CLOSED
Open: None
Closed: Crib dock (#55), firewood, campsites, trail, composting toilet

Grenadier Island (West)
Open: South dock (#2), picnic shelter, trails, composting toilet
Closed: North crib dock

Gordon Island
Open: Central L-shaped dock (#29), oTENTiks, campsites, composting toilets, trails, southwest picnic shelter, firewood, fire pits, red chairs, paddle landing site, historic picnic shelter
Closed: South camping dock (#61), north floating docks (#1)

Hill Island (Batterman’s Point) – CLOSED 
Open: None
Closed: All facilities (crib dock (#10), trails, firewood, garbage and recycling, picnic shelters, fire pit, red chairs, composting toilet) 

Main Duck Island
Open: Dock, composting toilet, trail (partial) 
Closed: Trails (partial)

McDonald Island
Open: East dock, camping dock, central floating dock, trails (most), campsites, oTENTiks, paddle landing site, fire pit, firewood, composting toilets, garbage and recycling
Closed: Crib dock (#47), trails (small portion)

Mermaid Island
Open: Floating dock (no shore access).  Island access not permitted. Park staff will collect fees.
Closed: All facilities on island (trail, composting toilet).  Island access not permitted.

Milton Island
Open: Crib dock, campsite (#3), trail (partial), picnic shelter, composting toilet, fire pit, firewood.
Closed: North finger docks, trails (partial), campsites (#1, #2), south finger docks.

Mulcaster - CLOSED
Open: None
Closed: All facilities (south dock (#16), east dock (#1), firewood, trails, campsites, composting toilet, paddle landing site, fire pit).  No island access permitted. 

Stovin Island – CLOSED 
Open: None  
Closed: All facilities (south crib dock (#425), bay crib dock, picnic shelters, paddle landing site, composting toilet, trails).  No island access permitted.

Thwartway Island
Open: Mooring buoys. No island access permitted. Park staff will collect fees.
Closed: All facilities on island (dinghy ramp (#45), trail, composting toilet [repair required]).  No island access permitted.