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Position : Latitude 53 11'.18 N Longitude 4 12.5'W
Satellite Derived Position 0'01S. 0'08E
Lock Basin Light: F.WR Vis R225-357 W 357-225
Approach to Port Dinorwic
From the North: The Britannia Bridge lies 2 nm to the north
of Port Dinorwic. To the south east of the bridge, on the opposite
shore to Nelsons Statue is an Historic Wreck. Avoid this by keeping
north of the channel until the Straits turn south. The Lock opens
up to port 300m after the start of the residential development and
below the Hotel painted pink.
From the South: Provided due care is taken the passage between
Caernarfon and Port Dinorwic is danger free. The lock entrance opens
up to starboard 300 mtrs before the end of the residential developments.
Sailing From Port Dinorwic
Bound
North from Port Dinorwic:
The correct time to pass through the 'Swellies' is at HW or LW slack.
This is -2 Hours Liverpool (-0052PD). However, due to the height
and time between the ends of the Straits, passage north at this
time means you effectively travel up hill, against the tide. By
timing your arrival at Britannia Bridge ( 2nm from PD) - 3 hours
before Liverpool (-0152PD)you will gain a favourable tide to Bangor,
then a period of relative 'slack' until you gain a 'new ebb' toward
Puffin Island and the northerly exit of the Straits
Bound
South from Port Dinorwic:
The tide flows with considerable strength along the full length
of this end of the Straits. Provided due care is taken, however,
the passage is danger free between Port Dinorwic & Caernarfon.
( Note buoyage change near Caernarfon). It is best to leave Port
Dinorwic early as you will need to push against the last of the
flood. The aim is to reach Fort Belan at the southern entrance (to
the Straits (5.5.nm) at the top of the tide (-0025PD) This will
allow passage over the Bar at maximum depth. Passage over the Bar
at half tide is not recommended even in calm conditions.
Admiralty
Charts - Available at The Marina Office
| Port
Dinorwic (Straits) |
1464
|
| Irish
Sea (West) |
1411
|
| Irish
Sea (East) |
1826
|
| Caernarfon
Bay |
1970
|
| Cardigan
Bay |
1971
|
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