The RNLI is warning sailors not to go out on the water.
Lifeboat crews were called out to rescue a yacht which ran aground off the coast of Selsey on Sunday.
The yacht had 3 people on board when it ran aground off Selsey Bill, in West Sussex.
The RNLI lifeboat was launched after the UK Coastguard got a mayday call.
When the crew arrived, they saw the yacht had floated off the shingle bank and that everyone onboard was fine.
The Helmsman Harry Emmence said he was "surprised" to get a call involving a yacht, after the government had advised against all non-essential travel during the coronavirus outbreak.
"On this occasion we were able to keep a distance from the persons on the vessel as the safety of our crews is paramount. But the RNLI crews will always respond to an emergency."
The Maritime and Coastguard Agency said it's getting reports of people still going to the beach despite restrictions surrounding Covid-19.
Pete Mizen, assistant director for HM Coastguard, said: "The rules are very simple. Stay at home. The risk of spreading Coronavirus is huge...you’re then putting frontline emergency responders at risk of Covid-19 too."
"Stay at home. The risk of spreading Coronavirus is huge and while you might be okay, the person you give it to may not. And if you get into trouble and have to call 999 and ask for the Coastguard, you’re then putting frontline emergency responders at risk of Covid-19 too."