Swimmers tackled a 5km course in Falmouth to raise over £7,000 for the Royal Cornwall Hospitals Charity and the Cornwall Wildlife Trust.
Last weekend 29 swimmers took to the water off Rosemullion Head in Falmouth Bay, ending at Silver Steps on Pendennis Head, for the Across the Bay charity swim.
Despite the previous night's poor weather, the sea was clear and flat, providing ideal conditions for the swimmers.
Karen Murrish, fundraising manager for Royal Cornwall Hospitals Charity, said: "Conditions meant some awe-inspiring sights of the underwater world to help them along the way and all swimmers made it to the finish line with big smiles at their achievement."
Now in its second year, the event has raised more than £7,000, with donations still being received.
The funds raised will be used to support staff wellbeing initiatives at the NHS Trust, as well as the Cornwall Wildlife Trust's Ocean Emergency Fund.
Ms Murrish added: "During the pandemic, the importance of NHS staff wellbeing was really pushed to the forefront of people’s minds and today there is no less importance on their health and wellbeing and the impact it has not only on themselves, but also on the care they are able to provide to our growing local population."
Anyone wishing to support the swimmers can still do so via the event fundraising pages: RCHT Charity 5k Across the Bay 2024 - JustGiving and Cornwall Wildlife Trust 5K Across The Bay for Cornwall Wildlife Trust - JustGiving
The challenge route took place exclusively in the Fal and Helford Special Area of Conservation, an international designation afforded to protect the marine environment.
Matt Slater, of Cornwall Wildlife Trust, said: "The bay has nationally important maerl beds and seagrass meadows, both habitats are critical nursery areas for many familiar and commercially important fish species, including bass, scallops, rays, and cuttlefish.
"They are also invaluable in the fight against climate change due to their extraordinary ability to store 'blue carbon'.
"As the swimmers passed Stack Point, they passed over one of the UK’s best examples of the incredibly rare and 'irreplaceable' maerl beds."
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