"We have been very busy painting the dining area, TV room, group cabin kitchen and toilet blocks. There is all-new signage for the park, and we are in the process of designing a new website.
"Capital work will be finished by September 2019, we will also continue with maintenance and updating every year following.
"We expect to improve our occupancy especially on the shoulder seasons, early winter/spring. We are currently targeting holiday makers and tourists, sports and family groups but we also really want to make it more attractive for corporate and business people."
The couple had also bought several caravans, which are being renovated and will be available for guests to stay in, as well as the park's existing 11 motel units, four ensuite units, three apartments and 21 cabins.
The rest of the buildings in the 4hapark would also be freshly painted.
The couple now own two holiday parks. At the end of last year the Creswells crossed over from a farming career to buy the Mahia Holiday Park.
Managers have now been installed at Mahia.
"Owning Mahia definitely prepared us for Hastings Top 10 as it has given us a better understanding of how the tourism industry works in this area. It also gave us knowledge of what is involved with running a park successfully and gave us the confidence to take on a larger project, like Hastings Top 10," Sharelle Creswell said.
"Without having owned Mahia, we would have had no idea what to expect when taking over Hastings Top 10 and the transition would not have been as smooth."