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The Scilly Islands- New Grimsby Sound

Your Comments: 3 Read or add your comments

Courtesy Flag

Flag, Red Ensign


None Given


AC 1148 Isles of Scilly to Lands End; 34 Isles of Scilly; 883 Isles of Scilly and the Principal Off-Islands; SC 5603 (8 to 13) Various parts of the Isles of Scilly including small scale Falmouth to Scillies; Imray C7 Falmouth to the Scillies and Trevose Head (insufficient on its own)

Rules & Regulations

No anchoring in St Mary’s Pool or inshore at New & Old Grimsby. 3kt speed limit in St Mary’s Pool



Tidal Data Times & Range

HW St Mary’s is HW Dover – 0630. MHWS 5.7m MHWN 4.3m MLWN 2.0m MLWS 0.7m There is a tidal stream diagram included with the charts of the Islands.

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General Description

Main coverage of the Scilly Isles  HERE

New Grimsby Sound lies between Tresco and Bryher and is a deep water anchorage well sheltered from the East and West but awful in SSE & NNW winds.  For strong Easterlies it is better sheltered than St Mary’s. It is accessible at all states of the tide from the North but only for about a couple of hours either side of HW if entry is made from the South.

  ... read more


If you are familiar with the Islands and coming from the North,..... ... read more

Berthing, Mooring & Anchoring

Once clewed up and either anchored or moored in the Sound.... ... read more

Your Ratings & Comments

Summer 2021
Written by chalky | 9th Jun 2021
The ‘three nights for the price of two’ has been stopped. The overnight price for a mooring is still £20
Written by Don Thomson | 3rd May 2018
No changes but we understand that the helicopter service will be reinstated in 2019
Update Spring 2016
Written by dononshytalk | 12th May 2016
These notes were reviewed by Don in May 2016. No changes, not even the prices. There are rumours that the helicopter flights may be resumed either this summer or next but we think they are still at the "talking" stage
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