Haven plans to invest in a revamp and extension of the entertainment complex at a North Wales holiday park.
The holiday firm is preparing to splash the cash at Greenacres Holiday Park at Morfa Bychan near Porthmadog.
The main building is currently used as the central hub for the site and includes a showbar, amusement arcade, indoor swimming pool, reception area, supermarket, play area and seating areas.
Haven wants to invest in the complex to ensure the site remains popular in an increasingly competitive tourism market.
Plans have been submitted to Gwynedd council.
A statement from planning agent Lichfields said: "The proposed development forms part of Bourne Leisure’s(Haven's parent company) continuing investment and enhancement of Greenacres Holiday Park as part of its active development programme, to improve the quality and standard of facilities at the site to meet the expectations of guests and remain an attractive option for visitors to Gwynedd.
"The proposed extension and improvement work represent a significant investment in the recreational facilities at the park.
"It will make an important contribution to ensuring that the park remains a competitive tourist destination, enabling it to continue to attract visitors and contribute to the local tourism economy."
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Haven has also been investing heavily in the nearby Hafan y Mor site in Pwllheli, including £3m on the pool complex.
A Haven spokesman said: "At Haven we constantly invest in our parks and this summer we are trialling a range of new concepts across food and beverage, entertainments and activities and leisure.
"At this stage we cannot make any comment on plans on further rollout or individual parks."