On Lake Washington, it is home to an Ivar's and Kidd Valley and right next to the Renton Boeing plant. Lots of open areas for picnics and relaxing.
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The longest trail in Renton and maybe the most beautiful. Especially nice during September when you can see the salmon returning to spawn.
Includes the local attraction of Devil's Elbow, a closed road which was known for its devilishly sharp curve that sent several cars tumbling into a ravine during rainy weather. With its "abandoned civilization" vibe, it makes for a great hike.
In Newcastle.
Right next to the Renton Library, Liberty Park has basketball and tennis courts, picnic areas, play equipment, a skatepark, and access to the Cedar River Trail. It's often visited in September when you can see the salmon making their way up the Cedar River from the Renton Library's bridge.
Open mid-June through Labor Day
Huge swimming pool located near downtown. Big draw for residents during the summer. Features a wave pool, lazy river, island lagoon, two water slides, play structures, and more. Lap pool is also available (and cheaper). Ticket sales start 3 hours in advance of the session you wish to attend; see the website for more details.
Local non-profit theatre with a nearly half-century of history in the city (the oldest theatre in Renton!). Located in Cedar River Park, Carco is always putting on at least one performance.