| Fox Point Reach | Providence, RI | 18.7 miles | SE |
| Fuller Rock Reach | Providence, RI | 20.2 miles | SE |
| Sabin Point Reach | Providence, RI | 21.3 miles | SE |
| Bullock Point Reach | Providence, RI | 23.2 miles | SE |
| Conimicut Point Reach | Providence, RI | 24.7 miles | SE |
| Rumstick Neck Reach | Bristol, RI | 26.4 miles | SE |
| Wollaston Channel | Norfolk, MA | 27.9 miles | NE |
| Squantum Channel | Norfolk, MA | 28.1 miles | NE |
| Fort Point Channel | Suffolk, MA | 29.5 miles | NE |
| Reserved Channel | Suffolk, MA | 30 miles | NE |
| Entrance Channel | Newport, RI | 30 miles | SE |
| Boston Main Channel | Suffolk, MA | 30.3 miles | NE |
| Sculpin Ledge Channel | Essex, MA | 30.4 miles | NE |
| Little Mystic Channel | Suffolk, MA | 30.7 miles | NE |
| Boston Inner Harbor | Suffolk, MA | 31 miles | NE |
| Governors Channel (historical) | Suffolk, MA | 31.6 miles | NE |
| Nantasket Roads | Norfolk, MA | 32.4 miles | NE |
| Nubble Channel | Suffolk, MA | 32.5 miles | NE |
| President Roads | Suffolk, MA | 32.8 miles | NE |
| The Narrows | Suffolk, MA | 33.1 miles | NE |
| The Narrows | Plymouth, MA | 34.3 miles | SE |
| Boston North Channel | Suffolk, MA | 34.6 miles | NE |
| Boston South Channel | Suffolk, MA | 34.7 miles | NE |
| Hypocrite Channel | Suffolk, MA | 35.5 miles | NE |
| The Narrows | Washington, RI | 36.2 miles | SE |
| East Passage | Newport, RI | 36.4 miles | SE |
| West Passage | Newport, RI | 36.6 miles | SE |
| Western Channel | Suffolk, MA | 36.8 miles | NE |
| Black Rock Channel | Essex, MA | 36.9 miles | NE |
| The Gangway | Norfolk, MA | 38.5 miles | NE |
| Dug Way | Plymouth, MA | 40.9 miles | SE |
| Great Wood Island River | Plymouth, MA | 42.2 miles | SE |
| Cut River | Plymouth, MA | 42.2 miles | SE |
| Goose Point Channel | Plymouth, MA | 42.4 miles | SE |
| Plymouth Harbor Channel | Plymouth, MA | 42.7 miles | SE |
| Horseneck Channel | Bristol, MA | 43.7 miles | SE |
| South Channel | Essex, MA | 44.6 miles | NE |
| Rams Horn Channel | Essex, MA | 44.7 miles | NE |
| Beverly Channel | Essex, MA | 45.1 miles | NE |
| Marblehead Channel | Essex, MA | 45.8 miles | NE |
| Childrens Island Channel | Essex, MA | 46.1 miles | NE |
| Judith Pond | Washington, RI | 46.2 miles | SW |
| Salem Channel | Essex, MA | 46.4 miles | NE |
| Eagle Island Channel | Essex, MA | 46.8 miles | NE |
| Salem Channel | Essex, MA | 47.9 miles | NE |
| East River | Plymouth, MA | 48 miles | SE |
| Manchester Channel | Essex, MA | 49 miles | NE |
| Hog Island Channel | Barnstable, MA | 49.1 miles | SE |
| Cleveland Ledge Channel | Barnstable, MA | 49.2 miles | SE |
| Cleveland Ledge Channel | Barnstable, MA | 49.2 miles | SE |
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