The Garrison Area
To St Helens Pool.
|My track from Hugh Town to St Helen's Pool (red) and an exit|
route through Crow Sound (blue). All the green areas dry at springs
(Lowest Astronomical Tide) and much dries on most tides.
|The route out of St Helen's Pool via |
It was somewhat surprising to see many familiar boats around the islands, at least a dozen of them, some like "Marguerite" seen at Cawsand, St Mawes and again in St Helen's Pool were clearly just following the same route as me, but several I have seen on other cruises.
Tomorrow will be a 06:30 start to catch the tide back to the mainland. The start will likely be a bit tense, one option is to the north through "St Helen's Gap" with a navigable passage only 100 yards wide that is not marked and there are no transits, you just have to aim for just left of centre between two visible rooks some distance away. The advantage is that this leads straight to deep water and if the wind is from the NE quadrant it gives a better angle to the wind.The second option is to the east through Crow Sound going through a lot of shallow water, navigate through or around a tidal race / over-falls and potentially having to go more upwind once the engine goes off.
Fortunately these days GPS will make things much easier than in days gone by.
The tidal range here is not significantly higher than than many places in the channel, today when we are half way between springs and neaps it is 3.5 metres compared with 3.6m at Falmouth and 3.5m at Newlyn but is dwarfed by the 5.9m at Guernsey. What makes the tide so important is the large number of rocks, big and small and wide expanses that dry or almost so.
|The view from St Helens Pool towards Old Grimsby taken |
shortly before high water.
|And at low water|