Castle Neck Island
- Location: Ipswich Bay
- Mile Marker: Essex Bay
- Lat / Lon: N 42° 39.940' / W 070° 44.195'
- Depth: 3-7 ft
Holding:
0
Good, Sand, Mud
Wind Protection:
0
Somewhat exposed S thru SE
Wake Protection:
0
Somewhat exposed S thru SE