Offering year-round cruising in the sheltered Menai Straits, the picturesque grade II listed marina is ideally placed to help berth-holders explore and discover the beauty of north Wales.
- Safe and secure moorings
- Sheltered marina in picturesque setting
- Fully watered dock berths to swinging moorings
- A range of local services including hairdresser, beauty salon and physio
- Excellent cruising in local area
- Beautiful local area with many other activities
- The fabulous La Marina restaurant and Swellies café
Charlotte Dawson
Marina Manager
What makes Port Dinorwic so special
Sailing from Port Dinorwic
There are quiet anchorage spots just a stones throw away in Rowen Bay or Abermenai Point for a night or two, or for venturing further afield, Conwy, Holyhead, Porth Dinllaen, Abersoch and Pwhelli are all within easy reach. The more adventurous the Isle of Man and Ireland are within a day’s sailing.
Other activities in the area
Hailed the ‘Adventure Capital of Europe’, north Wales has a wide range of activities on offer.
Historical facts
The development of the dock system and associated buildings began in 1763 when the Assheton-Smith family built a small quay on a marshy inlet to ship the slate from Dinorwic quarries, the world’s second largest slate quarry.
Berth Holder Facilities
- Free parking for berth holders
- Brand standard washroom facilities
- Laundry facilities
- Rubbish disposal and recycling facilities
- Electricity to berths with prepay cards
- Fresh water to berths
- Dedicated marina office
- Diesel berth
- CCTV
Marine services available
- Boatlifting
- Antifouling
- Valeting
- Hull washing
- Polishing
- Rigging
- Engine servicing
See prices below
Berthing Prices
We offer a range of flexible berthing options with new berth holders welcomed all year round.
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Annual Berthing Contract
Lock Basin 1 ~ £422/m
Lock Basin 2 ~ £395/m
Tidal Basin A (Serviced) ~ £376/m
Tidal Basin B (Unserviced) ~ £287/m
- Flexible payment options. Pay in advance or monthly by direct debit (10% surcharge applies)
- Minimum 6m length chargeable for boats 5.9m and below.
Lock Basin 1 ~ South side of the Inner Dock
Lock Basin 2 ~ North side of the Inner Dock -
Summer Season Berthing Contract
Lock Basin 1 ~ £325/m
Lock Basin 2 ~ £304/m
Tidal Basin A (Serviced) ~ £290/m
Tidal Basin B (Unserviced) ~ £221/m
Swinging Mooring 12t ~ £2,100 fixed
Swinging Mooring 15t ~ £2,500 fixed
- 1st April to 31st October
- Flexible payment options. Pay in advance or monthly by direct debit (10% surcharge applies)
- Minimum 6m length chargeable for boats 5.9m and below.
Lock Basin 1 ~ South side of the Inner Dock
Lock Basin 2 ~ North side of the Inner Dock -
Winter Season Berthing Contract
Lock Basin 1 ~ £209/m
Lock Basin 2 ~ £196/m
Tidal Basin A (Serviced) ~ £186/m
Tidal Basin B (Unserviced) ~ £142/m
- 1st November to 31st March
- Flexible payment options. Pay in advance or monthly by direct debit (10% surcharge applies)
- Minimum 6m length chargeable for boats 5.9m and below.
Lock Basin 1 ~ South side of the Inner Dock
Lock Basin 2 ~ North side of the Inner Dock -
Summer Monthly Fully Flexible Berthing
Lock Basin 1 ~ £58/m
Lock Basin 2 ~ £54/m
Tidal Basin A (Serviced) ~ £52/m
Tidal Basin B (Unserviced) ~ £39/m
Swinging Mooring 12t ~ £450 fixed
Swinging Mooring 15t ~ £575 fixed
- No payment plan options.
- 7 day notice required if leaving.
Lock Basin 1 ~ South side of the Inner Dock
Lock Basin 2 ~ North side of the Inner Dock -
Winter Monthly Fully Flexible Berthing
Lock Basin 1 ~ £52/m
Lock Basin 2 ~ £49/m
Tidal Basin A (Serviced) ~ £47/m
Tidal Basin B (Unserviced) ~ £35/m
- No payment plan options.
- 7 day notice required if leaving.
Lock Basin 1 ~ South side of the Inner Dock
Lock Basin 2 ~ North side of the Inner Dock -
Visitor Berthing
Weekly ~ £25/m
24hour day rate ~ £5/m
Short Stay up to 4 hours ~ £25 fixed
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Storage
Hard standing monthly £19.50/meter
Trailer/Kayak/Canoe storage £11.50/week
Take advantage of your boat being ashore and book in your boat maintenance and engine servicing with us.
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Park & Launch
Up to 5 metres ~ £873/£1125
5 - 6 metres ~ £935/£1325
6 - 7 metres ~ £992.50/£1431
7 - 8 metres ~ £1108/£1537
8 - 9 metres ~ £1344/£1770.50
- Prices shown are for 6 months/12 months
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Marine Services
Tractor launch ~ £30
Lift in / Lift out ~ £23.50/metre
Lift and hold ~ £25.50/metre
Lift to transport ~ £25.50/metre
Step / unstep mast ~ £100
Pressure wash fin keel ~ £8.00/metre
Pressure wash bilge keel ~ £9.00/metre
Labour ~ £46.00/hour
Workboat tow ~ £50.00
Cradles ~ £60.00/month
Stands x 4 ~ £40.00/month
Stands x 6 ~ £60.00/month
Interested in Berthing with us? Get in touch
Contact usNavigation
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Dangers and Restrictions
A strong tide can be experienced across the entrance to the Tidal Pontoon Basin. A 5 knot speed limited exists in this area of the Strait. In addition please observe a DEAD SLOW speed limit to avoid creating unnecessary wash.
Marina approach
Contact the dockmaster on Channel 80 before approaching. Both the Lock Basin and Tidal Pontoon Basin entrances dry but are accessible HW + / – 2 hours approx.
Lock entrance approach
No movements in Lock or Lock Basin without permission. To enter lock, from main channel, turn when entrance opens up and keep 10 metres from wall. All movement is controlled by the dock master.
Tidal pontoon basin
Berth Holders and short stay visitors only – Dries at springs. Strong cross tide at entrance. To enter turn when entrance opens up, beware of departing vessels.
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Approach to Marina
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 Port Dinorwic.
From the South: The lock entrance opens up to starboard 300 mtrs before the end of the residential developments.
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Sailing from the marina
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 StraitsBound 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, 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.
On arrival at Port Dinorwic Marina
All new boats must report to the Marina Office on arrival to complete a mooring contract. Boat owners need a copy of their fully comprehensive insurance documents. If you require a competitive quote for marine insurance contact Bay Marine Insurance.
Marina Office Opening Times ~ 01248 671500/01248 670176
For more information or to view our facilities please visit our marina office where our staff will be happy to help.
Marina Office (Administration)
Monday - Friday
8.30am - 4.30pm
Saturday & Sunday
Closed
Lock Office & Marina Operatives On Duty - Summer
7 Days A Week
8am - 8pm
Lock Office & Marina Operatives On Duty - Winter
7 Days A Week
8am - 6pm
Sea Lock Dock Master On Duty
7 Days A Week
Day & Night - High Water +/- 2 Hours
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Port Dinorwic Marina Limited was placed into Administration on 5 June 2023 with Simon David Monks, Nicola Kate Clark and Colin Michael Haig of Azets Holdings Limited appointed as Joint Administrators. The Joint Administrators act as agents of the Company and without personal liability.
The Joint Administrators can be contacted on 0161 245 1000, via email at PortDinorwicMarina@Azets.co.uk or by post at c/o Azets Holdings Limited, 5th Floor Ship Canal House, 98 King Street, Manchester, M2 4WU. If you wish to make an enquiry into the purchase of the business and assets of the Company, please visit the Christie & Co website: https://www.christie.com/4290050 [christie.com]
