Toronto 
Kelso Conservation Area is reopening its popular inflatable waterpark, Kelso Cove, for the 2026 summer season with a new attraction.
Located in Milton, Kelso Cove Waterpark features a giant inflatable structure with slides, climbing towers, obstacle courses, and bounce pads – a total of 26+ water features spread across an area of 50′ x 170′.
New this year is the new L’il Lagoon, a playful waterpark built just for kids ages 4 to 12! Designed with smaller, easier-to-climb features, it gives younger adventurers a safe space for big fun. Guests must be 37″ to 63″ tall, weigh 143 lbs or less, and meet age requirements. Kids 4 to 8 need a chaperone 16+.
For those who want more action, Kelso Cove offers waterpark thrills for ages 5 and up, with a minimum height of 48″ and a complete swim test (40 feet in length), with climbing elements, slides, and balance-testing obstacles. Certified National Lifeguard Service (NLS) lifeguards will be stationed on duty throughout the waterpark’s operating hours to ensure visitor safety.
The Kelso Reservoir supports various activities throughout the year, from swimming and canoeing to paddleboarding. Visitors can also walk peacefully along the boardwalk around the reservoir.
Fishing enthusiasts can enjoy fly fishing, shoreline fishing, and non-motorized boat fishing, though live bait is not allowed.
Kelso Conservation Area transforms from the winter ski and snowboard hill, Glen Eden, into a hub for outdoor activities in spring, summer, and fall. In addition to water activities, visitors can hike or mountain bike on extensive trails, tackle the aerial courses, or enjoy a stroll on the stroller-friendly boardwalk around the lake.
Trip Planning – Kelso Cove Waterpark
Hours of Operation:
Weekends Only, June 13 to 28, 2026: 11 a.m. to 6:30 p.m.
June 29 to September 7, 2026:
- Monday to Thursday: 10 a.m. to 5:30 p.m.
- Friday, Saturday & Sunday: 11 a.m. to 6:30 p.m.
Admission:
Opening Weekend with 50% Off Tickets – June 13 & 14 Only
- Adult (ages 15-64)/Senior (ages 65+): $25
- Child Admission (ages 5-14): $20.00
- L’il Lagoon 4 Year Old Admission (age 4 only): $20.00
- L’il Lagoon Chaperone Admission (ages 16+, no access to features):$10.00
Kelso Conservation Area gate fees are required unless booking as a Conservation Halton member.
Gate Admission:
Online Gate Fees:
Adult (15-64): 10.50 +HST
Senior (65 and up): $8.25 +HST
Child (5-14): $7.25 +HST
Location:
Kelso Conservation Area, 5234 Kelso Rd, Milton, ON L9E 0C6
