Pontin's has announced plans for the refurbishment of its UK holiday parks as part of a multi-million pound development scheme to be carried out over the next five years.

The company's owner, Ocean Parcs, has revealed that the new proposals will go beyond the £50m scheme that was unveiled in February, with the Southport Holiday Park in Lancashire set to benefit from investment worth more than £100m alone. Subject to planning permission, the Southport site will receive a complete overhaul and will boast a hotel and conference facility, bars, restaurants, cafés, a lido leisure facility and a sports and health club.

It is hoped that the new facilities, which will also incorporate a range of environmentally friendly measures, will be made available to non-park residents to establish Ainsdale as a leisure destination. Meanwhile, Prestatyn Sands in North Wales will benefit from a new Ocean Spa complex, an enhanced leisure pool, extended themed restaurant and café facilities and a new amusement arcade, as well as new bingo and adult gaming facilities and refurbished entertainment venues.

The project will enable Prestatyn Sands to extend its capacity in order to cater for 5,000 guests, while a similar scheme at Brean Sands will enable the Somerset holiday park to boast a capacity of 4,000 guests. Lowestoft (Pakefield) Holiday Park in Suffolk will double in capacity and size to more than 100 acres (40.5 hectares) to boast a range of new facilities, while Camber Sands in East Sussex will also be redeveloped. However, the company's Blackpool holiday park will close at the end of its current lease.

Ocean Parcs chief executive Ian Smith said: "In commencing our strategic long term development plans, it is with regret and sadness that we will not be extending the development plans to our Blackpool Holiday Park. "It was not an easy decision for the board to make but the level of investment required for a short period of time and a reduction in holiday bookings at the Park, which is the reverse of the trends at our other parks, means that it is not commercially viable to continue beyond the end of the current lease."