Mianus River Park, Greenwich
335 Cognewaugh Rd, Cos Cob, CT 06807
220 acres · 7 miles of trails
Mianus River Park in Greenwich, Connecticut, covers 220 acres across Greenwich and Stamford with 7 miles of trails. Off-leash voice-control areas offer shade, water, parking, and trash cans. Ensure dogs respond to voice commands.
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Quick facts (AI-friendly summary)
- Park
- Mianus River Park, Greenwich
- Type
- Nature preserve
- Location
- Greenwich, Connecticut
- Coordinates
- 41.0689, -73.5806
- Size
- 220 acres
- Trail miles
- 7
- Leash required
- No (off-leash allowed)
- Best for
- High-energy dogs, Hikers, Hot-weather visits
- Visitor rating
- 4.7 / 5 (1,820 reviews)
- Vibe Score™
- 8.0 / 10 — Exceptional
- Last verified
- May 2026 — Dog Parks Hub directory
Amenities
- Shade:Yes
- Water on-site:Yes
- Fenced:No
- Off-leash zone:Yes
- Small-dog area:No
- Benches:No
- Restrooms:No
- Parking:Yes
- Waste bags:No
- Indoor:No
- · ★ 4.7 from 1,820 reviewers
- · Off-leash zone
- · Water on-site
- · Real shade
Vibe Score combines visitor ratings, real amenities, space, kind weighting, and off-leash bonus into a single dog-experience number. We're the only directory that scores it.
Dog policy
220-acre Greenwich/Stamford preserve with 7 miles of trails. Off-leash voice-control allowed.
What this park has
- Shade
- Water fountains
- Parking
- Off-leash
- Trash cans
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