- Type
- Harbour
Full-service marina on the Mianus River at Cos Cob, Connecticut, with around 114 berths.
Guide
Approach and anchoring
Reached from Long Island Sound via the Cos Cob Harbour entrance and up the Mianus River. The approach channel is prone to shoaling, so deeper-draught boats should favour a rising tide.
Practical
The yard has about 114 berths, a diesel fuel berth, a travel lift and a chandlery. There are heads, ice and a pump-out, with gated access and a launch service for the basin.
Key facts
- Type
- Harbour
- Coordinates
- 41.04069, -73.58984 (41°2.44'N 73°35.39'W)
- Town
- Greenwich
- Country
- United States
- Phone
- +12038691892
- Updated
- July 7, 2026
Getting there
Drenckhahn Boat Basin lies at 41°2.44'N 73°35.39'W, that is 41.04069, -73.58984 in decimal degrees.
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