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The Scilly Islands, St Mary’s Pool and Porth Cressa

Your Comments: 5 Read or add your comments

Courtesy Flag

Flag, Red Ensign

Waypoint

None Given

Charts

Isles of Scilly; 883 Isles of Scilly and the Principal Off-Islands; SC 5603 (8 to 13)

Rules & Regulations

See Text

Hazards

See Text

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   Contacts

St Mary's Harbour Office tel 01720 422768  mob 07789 273626  www.stmarys-harbour.co.uk/



 

Hugh Town is the main administrative centre on the Islands and is also the main location for all the services.  It lies on the western side of the Island of St Mary’s and spreads across the isthmus connecting the island to Garrison Hill and can be accessed easily from either St Mary’s Pool to the North of the isthmus or Porth Cressa to the South. 

Unsurprisingly most first time visitors head for St Mary’s Pool where there are visitor’s moorings and, at some time during the day, you can get alongside the pier to take on fuel and water.  If you are lucky there may be room at one of the three visitor’s berths alongside the inner end of the quay where there are power and water hook-ups but these are drying berths and if you don’t have to raft up with a boat already alongside, you will undoubtedly be rafted upon by the end of the day! 
At the height of the season whatever mooring or berth you clew up at you are likely to have to share it as this is a very crowded anchorage, so much so that space to tie up your dinghy is at a premium (do the math; 38 moorings, some double banked, all trying to tie their dinghies up at the steps on the quay; getting back to your dinghy is like trying to stand up on a floating, bouncy castle).  This traffic jam may have been solved by the introduction of a pontoon with fingers

The quay itself is holy ground and not to be approached by humble yachtsmen without the express permission of the HM and, even then, not to the disadvantage of the local ferries and various pleasure craft going about their business.  The “Great White Whale” (the MV Scillonian) arrives at about lunchtime every day and ties up starboard side to at the business end of the quay and then reverses out again at 2.00pm needing the water to the west of the Lifeboat to turn in before heading back to Penzance. Her normal route is South about the island but she sometimes use Crow Sound.

On the other hand, there’s Porth Cressa, the favoured haunt of those “in the know”.  This bay is less used than St Mary's on the other side and, not only that, you can anchor here for nothing.  I anchored here in the nineties with a metre draft and laid to two anchors at the bow quite close in (dried out at LW)

Approach

The initial part of the south about approach to both Porth Cressa and....

....St Mary’s is the same and, once you are certain of the position of the Gilstone (unmarked) and it’s associated shallows off Old Town Bay, you can pass quite close Peninnis Head, hold a westerly course until Inner Head is well abaft the beam and then, for St Mary’s, shape a course for the Woolpack SCM or turn in for Porth Cressa. Abnormally, coming into Porth Cressa, it’s possibly better to do it at low water when all the rocks can be seen and even at LWS there’ll be just over a meter of water where the anchor symbol has been place on the chart. Later when you’ve had a look at the lie of the land, if you can take the ground, you can push up right into the throat of that little channel between Brow Breeze and the rock bank to the west of it, lay two anchors in a Y at the bow to limit your scope and you’ll be well settled for a couple of days.


For St Mary’s, once you have passed the Woolpack SCM, there’s plenty of water for a moderate draft boat to coast around Garrison Hill a couple of cables off the main LW mark; you don’t have to follow the deep draft route all the way out round Woodcock Ledge.  Once you have cleared Newman hold on to NE course for a while towards the Bacon Ledge PHM to clear the rocks off Rat Island; there are lead in marks shown on the chart but basically when you have cleared Newman Buoy (Fl.(2) G 5s) you can head straight for the moorings. Note that the old sector light on the pier is no more so, at night, you'll have to pass the Newman buoy and hold until the lead in lights on the shore come on to bearing.

If you have opted to come north about through Crow Sound, once you have cleared Crow Rock itself, your only problem is the narrow passage between The Cow (off Taylor’s Island) and Bacon Ledge.    The lead-in marks are quite prominent these days (there was a time when it was a case of “Beach hut? What beach hut”); the tower on the hill behind Hugh Town has always been easy to see and thanks to some diligent work the “White Mark on Shelter” is also fairly obvious. If you are in any doubt consult your compass; you should be running in on a bearing of 151T (variation in 2011 was about 4°W).  It might be a bit adventurous for a skipper who is not familiar with the Isles to make a night approach through this route.

Berthing, Mooring & Anchoring

You used to be able dry out on the beach at Porth Mellon away....

.... from the madding crowd but unfortunately that is no longer an option as anchoring is prohibited within the harbour limits. That doesn’t apply to the beach at Porthloo just to the north of the Pool where you can anchor off or dry out but it is a fair old hike to the shops from there.

You would be well advised to visit the St Mary's Harbour website above before you leave Lands End and familiarise yourself with the fiddly bits in the rules about who can do what where on the pier.

The mooring St Mary's Buoys have a sliding scale of charges but basically it’s £20.50 for boats up to 40ft (Yellow Visitors Buoys) and
£25.50 up to 60ft (Green Buoys)  with the fourth night free if you pay in advance.  The alongside berths are £25.50 (40ft) and £30.60 (60ft) per night.  Note also that, if you pop across here from one of the other islands to top up with food, cash or a lunchtime libation (a) you can’t anchor and (b) they’ll charge you £5 for a half day stop. (Anchor in Porth Cressa?)

There are no longer any moorings in Porth Cressa

Facilities

Water at taps in both locations as is Wifi

Links

Your Ratings & Comments

5 comments
UPDATE SPRING 2021
Written by Don Thomson 3 | 15th Apr 2021
I reviewed these notes in April 2021. The main change is that there are no longer any moorings in Porth Cressa and it is a free for all to anchor.
Communications improvement
Written by yachtman | 30th May 2018
Since I was last in the Scillies there has been a major upgrade in the data speeds on mobile phones.

using vodafone and 3 in 2016 there was only a 3G signal

this year 2018 on Vodafone it is 4G. Havent tried any other suppliers.
1 of 1 people found this helpful
UPDATE SPRING 2018
Written by Don Thomson | 3rd May 2018
I reviewed these notes in May 2018. The prices have changed and the sector light on the end of St Mary's pier is no more.
0 of 1 people found this helpful
Update from visit Aug 2017
Written by j2Chula | 4th Sep 2017
The Porthcressa moorings are rated up to 44ft and cost £20 per night. There is ample room to anchor inside (for smaller vessels) and outside the moorings.
St. Marys harbour has 36 yellow moorings for yachts up to 40ft (£18.50) and 10 green moorings for 40ft - 60ft (£24.50)
1 of 1 people found this helpful
Update Spring 2016
Written by dononshytalk | 12th May 2016
These notes were reviewed by Don in May 2016. We note that there moorings available in Port Cressa but not sure whether there is still room to anchor inshore of them.
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