About PNSY - The Back Channel Marina
MWR maintains two marina facilities at Portsmouth Naval Shipyard, Sound Basin and the Back Channel. Rental slips and moorings are available by the season to active duty, retired military and employees of the shipyard. The Sound Basin Marina has 70 slips and 62 deep water moorings and offers a transient pier and peirside water. The Back Channel Marina has 68 slips and 18 deep water moorings and offers a transient pier and pierside water and electricity.

Installations
COORDINATES
43.08249 N, -70.73331 E
Port Information
Téléphone
Profondeur à la marée basse moyenne
2 - 3m
Manœuvrabilité
Fair
Channel Marking
Fair
Port d'entrée
No
Overseas Visitor Berths
Yes
Type de quai
Floating
Style Stern To
Yes
Tidal Flow
Beware
Weather Forecast
Sun
5AM - 9AM
14 June 2026
- Light and variable.
- Increasing from 15 to 23°C
- SE 0.4m at 8s period
- UV Index: 0 - Low
- Mostly fine
Sun
9AM - 1PM
14 June 2026
- SW 4 knots increasing to S 9 knots. Gusts up to 17 knots.
- 23 to 28°C
- SE 0.4m at 7s period
- UV Index: 8 - Very High
- Mostly fine
Sun
1PM - 5PM
14 June 2026
- S 4–15 knots. Gusts up to 24 knots.
- 23 to 26°C
- SE 0.5-0.9m at 5s period
- UV Index: 8 - Very High
- Partly cloudy