Bourne Leisure-owned brand Haven has invested £50 million in its 36 self-catering parks during 2017.
The investment programme has enhanced pool facilities; introduced new entertainment experiences and venues; and improved caravan and pitches.
The holiday parks have also seen new food and drink outlets, and a greater number of dog-friendly options at more locations.
Refurbishments include an upgrade and new water features at the indoor pool at Hafan y Mor, near Pwllheli in Wales; and fully redeveloped outdoor pools at Doniford Bay, Somerset, and Devon Cliffs, Devon.
A new style of theatre entertainment has been introduced at five parks; and new caravan accommodation has been introduced across several locations.
Pictured opening the refurbished pool at Hafan y Mor is Welsh Olympic swimming star, Jazz Carlin.