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Outdoor activitiesin Arnold, Missouri

Discover outdoor activities in Arnold with Meetup. Whatever your interest, Meetup helps you connect with like-minded people.

Hiking

9/13/25 Forest Park Hike/Ruck: Pavillion #2

Hosted by: Medallion Hiking, Adventure, and Books

38 going
Free
9/13/25 Forest Park Hike/Ruck: Pavillion #2

10/2/25 Afternoon: Forest Park Hike/Ruck and Social at Boathouse

Hosted by: Medallion Hiking, Adventure, and Books

22 going
Free
10/2/25 Afternoon: Forest Park Hike/Ruck and Social at Boathouse

Simpson Park Levee Trail Loop

Hosted by: Let's Hike....

11 going
Free
Simpson Park Levee Trail Loop

10/4/25 Two fun activities (1) Forest Park Hike & (2) Backpack/Camping Demo

Hosted by: Medallion Hiking, Adventure, and Books

21 going
Free
10/4/25 Two fun activities (1) Forest Park Hike & (2) Backpack/Camping Demo

Running

Run Forest park trails or paths

Hosted by: St. Louis Trail Running Club

1 going
Free
Run Forest park trails or paths

Sunday Morning Lafayette Square - Morning Park Run and Social Gathering

Hosted by: Lafeyette Square morning park run and gathering

1 going
Free
Sunday Morning Lafayette Square - Morning Park Run and Social Gathering

60 minute FREE group workout

Hosted by: Free Workout Crew Tuesday's in Forest Park

1 going
Free
60 minute FREE group workout

Simpson Park Levee Trail Loop

Hosted by: Let's Hike....

11 going
Free
Simpson Park Levee Trail Loop