The Niagara Glen is managed by Niagara Parks who provide facilities, access, and maintainance. The glen hosts a wide variety of things to do including picnicing, hiking, fishing, birding, and of course, bouldering. Bouldering access is a cooperative effort between Niagara Parks and the Ontario Alliance of Climbers.
Bouldering
Each person who wants to climb at Niagara glen will need to fill out a waiver and acquire a permit. Permits may be purchased online, for either single day or annually. Permit applications have a processing time and Applicants are advised to submit their application at least 48 hours before their planned visit to ensure adequate processing time. Parking passes may be purchased from the Standalone kiosks in the parking lot at the Niagara Glen.
As of 2026 permit purchases have moved exclusively online through the Niagara Parks Citywide Portal. The Niagara Parks bouldering activity page is the entry point for permit applications. Specific details on applying for a bouldering permit can be found in Appendix B of the Niagara Parks Citywide Guide
Be sure to familiarize yourself with the bouldering rules before heading out to climb. The official bouldering rules don't mention it but rope climbing of any kind is strictly prohibited, this includes but is not limited to: top rope, trad, and any sort of aid for bouldering.
Trails
The glen can be a confusing place to nagivate for the uninitiated so it would be wise to bring either a trail map, or better for us boulderers, the Niagara Glen Bouldering guidebook.
Avoid the use of unsactioned spider trails. Many of the boulders lay off the main trails and the guidebook will show the side-trails that should be used to access these boulders. Do not attempt to blaze your own trail; Niagara Parks has on several ocassions expressed concern about the use of unsanctioned spider trails which damage the plant life and jeopardize access to climbing at the glen, not to mention you may end up in a closed area or wading through a big patch of poison ivy.
Closed Areas
There are various areas of the glen that are closed; usually for reasons of safety but may also be for maintenance, overuse, or otherwise. Niagara Parks will have the most up-to-date info on any closures and usually provide signage for closed trails, however, signage may not always be in place so don't assume an area is fair game just because there is no sign indicating otherwise.
Most of the areas nearest the river (Bizarro river and Oz river in the guidebook) are now no-trespassing areas, as such the boulders within them are closed. Being in these areas will result in fines. The whirlpool trail and by extension the whirlpool boulders are also often closed for safety reasons due to water levels.
Parking
Paid parking is available year-round at both the glen and the butterfly conservatory; however, the parking lot at the glen tends to fill up in-season when the weather is nice. Times will vary but it's relatively common to see the parking lot full by 11am and remain full until late afternoon on nice weekends.
Fret not when the glen parking lot is full as there are still some options: Do a few laps around the parking lot — there are people regularly coming and going from the glen so you may get lucky and snag a spot. Or, park down at the butterfly conservatory — there's often parking available there and the hike over to the glen is less than 1km.