Sign mandatory waiver before climbing

GRR Hours:

Mon-Fri     12-11pm
Sat     10am-10pm
Sun     10am-8pm
Members Only:
Tue, Wed, Thu:     6:30am-9am


*NEW* Pebbles is now SIGN-UP only! No more drop-in! Because of the program’s growing popularity, we had to make some changes, effective this Saturday, April 26th.
Saturday 5:30-7pm (ages 4-9)
Saturday 7:30-9pm (ages 10-14)
Sign up and pay online on BOOKEO or drop-in and pay at the desk. Everyone MUST prepay to participate.
Cutoff time for sign-up is Saturday at noon for that night.
Each child needs to be accompanied by their own parent.
More information here.

Rubble Rebels Summer Session

Looking to keep your kids busy this summer?
We still have a few spots left in our summer session of Rubble Rebels! May 26-July 30, 2014. $300.00 for 10 weeks (membership and rentals included). Ages 8-15. Registration deadline May 12th 2014.
Check out GRR’s Youth page for more info!

Easter Weekend Holiday Hours

Good Friday (April 18th) ……….. 12-11pm (regular hours)
Saturday (April 19th) ……….. 10am-10pm (regular hours)
Sunday (April 20th) ……….. 10am-8pm (regular hours)
EASTER MONDAY ……….. 12pm-8pm 

GRR’s Earth Day Project

Grand River Rocks’ Iron Horse Clean-up

This will be a litter clean-up project organized by Grand River Rocks Indoor Climbing Gym.  Guests and members will be invited to collect litter on the section of the Iron Horse Trail traversing from Ottawa Street to Madison Avenue (or further, time permitting).  Participants will receive hot dogs or veggie dogs and drinks.  There will be raffle prizes.All participants are encouraged to meet at Grand River Rocks prior to 4pm for instructions (or on the trail after 4pm) and to receive work gloves and garbage bags.  Dinner and the raffle will take place in the gym parking lot at 6pm (weather permitting).

Sign up at the gym or contact Scott Hamill at:

Event Start: April 22, 2014, 4:00 PM
Event End: April 22, 2014, 7:00 PM

1-50 Borden Ave S
Kitchener, ON