British National & Open Championships 3 - 8 August 2024


The IOCA UK British & Open Championships are being held at Plas Heli, the Welsh National Sailing Academy and Events Centre, Pwllheli, North Wales on the 3 - 8 August 2024. Pwllhelii and the waters of Tremadog Bay are widely regarded as being one of the best dinghy sailing venues in the UK. The IODA Euros were held there in 2015 and you can read a report of that event here. For more information about Plas Heli have a look at their prospectus

The event will open on Saturday 3 August with Registration in the afternoon and racing on Sunday 4th through to Thursday 8th August. There will be a sailors' party on the Thursday evening, with Friday being the departure day.

Notice of Race

Three fleets for the Nationals 2024

For the Nats 24 there will be a Main Fleet Senior and Junior, a Racing Regatta Fleet and a Coached Regatta Fleet (find more information on which fleet is right for you here. 

GBR Sailors entry

GBR sailors must be current IOCA UK member for 2024.  Join the class or renew membership before making an online entry.

International Sailor entry

International sailors must be a current member of a National Optimist organisation. When entering please select 'International' entry.


Accommodation Guide

There are many holiday lets, apartments, hotels and bed and breakfasts along the Llyn Peninsula and surrounding area.  Some suggested websites are: 

Gwynfryn Farm Holidays offers a variety of cottages on site along with an onsite swimming pool, tennis court and gym - all only a few miles from Pwllheli.

Tel: 01758 612536

Hafan y Môr Holiday Park is only a few miles from the Venue and provides a variety of accommodation options along with all the other activities you’d expect from a Haven Holiday Camp.


Tel: 01758 612 112

Camper vans

UPDATE 25 April 24

Plas Heli has 6 campervan/caravan available.

Please visit the link below and contact Plas Heli to book: 

Tel: +44 (0) 01758 613 343

Can you help? Optimist charter boats at the Nationals 2024
Each year the Optimist National Championships attracts plenty of international sailors, who often require a charter boat at the event. The more charter boats available, more sailors will be attracted to the event. 
Do you have a great condition Optimist (or multiple Optimists) that you would consider chartering this summer in Pwllheli? If so, please complete the online form here with further information about the boat and chartering options. (One form per boat).
IOCA will build up a database that can be shared when charter requests are received. (Please note that any charter and insurance arrangements will be between the boat owner and charterer, and IOCA will not be involved in any transaction or responsible for any logistics or accept any liability). 
Plas Heli RIBs
RIB crew at the Nationals 24 should read these Plas Heli RIB Instructions.
Safety Fleet 

Sign up here to bring your own RIB to be included Safety Fleet for the Main and Racing Regatta Fleets. 

Support Vessels and Support Persons

For information on Support Vessels Support Persons can be found in section 18 of the Notice of Race.

Safety Fleet RIB Crew 

Sign up here to be a Helm or Crew on a Safety Fleet RIB. NOT YET PUBLISHED


Class Sponsors

Gill marine